10. INSURANCE AND INDEMNITY............................... 16 10.1. Insurance....................................... 16 10.2. Quality Of Policies And Certificates............ 17 10.3. Workers' Compensation........................... 17 10.4. Waiver Of...

 
                                                                   EXHIBIT 10.20
 
                                     LEASE

                                    BETWEEN

                   BRITANNIA HACIENDA IV LIMITED PARTNERSHIP
                                 ("Landlord")

                                      and

                               DOCUMENTUM, INC.
                                  ("Tenant")

 
TABLE OF CONTENTS
 
 
                                                          
 1.     PREMISES.............................................   1
        1.1. Premises........................................   1
        1.2. Landlord's Reserved Rights......................   1 
       
 2.     TERM ................................................   2
        2.1. Term............................................   2
        2.2. Early Possession................................   3
        2.3. Delay in Possession.............................   3
        2.4. Construction....................................   3
        2.5. Acknowledgement of Lease Commencement...........   4 
        2.6. Holding Over....................................   4
        2.7. Option to Extend Term...........................   4
       
 3.     RENTAL................................................  5
        3.1. Minimum Rental...................................  5
        3.2. Late Charge......................................  7
       
 4.     TAXES.................................................  7
        4.1. Personal Property................................  7
        4.2. Real Property....................................  7
       
 5.     OPERATING EXPENSES....................................  8
        5.1. Payment Of Operating Expenses....................  8
        5.2. Definition Of Operating Expenses.................  8
        5.3. Determination Of Operating Expenses..............  9
        5.4. Final Accounting For Lease Year.................. 10
        5.5. Proration........................................ 11
       
 6.     UTILITIES............................................. 11
        6.1. Payment.......................................... 11
        6.2. Interruption..................................... 11
       
 7.     ALTERATIONS........................................... 11
        7.1. Right To Make Alterations........................ 11
        7.2. Title To Alterations............................. 12
        7.3. Tenant Fixtures.................................. 12
        7.4. No Liens......................................... 12
       
 8.     MAINTENANCE AND REPAIRS............................... 12
        8.1. Landlord's Work.................................. 12
        8.2. Tenant's Obligation For Maintenance.............. 13
             (a) Good Order, Condition And Repair............. 13
             (b) Landlord's Remedy............................ 13
             (c) Condition Upon Surrender..................... 13
       
 9.     USE OF PREMISES....................................... 14
        9.1.  Permitted Use................................... 14
        9.2.  No Nuisance..................................... 14
        9.3.  Compliance With Laws............................ 14
        9.4.  Liquidation Sales............................... 15
        9.5.  Environmental Matters........................... 15

10.     INSURANCE AND INDEMNITY............................... 16
        10.1. Insurance....................................... 16
        10.2. Quality Of Policies And Certificates............ 17
        10.3. Workers' Compensation........................... 17
        10.4. Waiver Of Subrogation........................... 17
        10.5. Increase in Premiums............................ 17
        10.6. Indemnification................................. 17
        10.7. Blanket Policy.................................. 17
 
                                       1

 
 
                                                        
11.     SUBLEASE  AND ASSIGNMENT.............................. 18
        11.1.  Assignnment And Sublease Of Premises........... 18
        11.2.  Rights Of Landlord............................. 19

12.     RIGHT OF ENTRY AND QUIET ENJOYMENT.................... 19
        12.1.  Right to Entry................................. 19
        12.2.  Quiet Enjoyment................................ 19

13.     CASUALTY AND TAKING................................... 19
        13.1.  Termination Or Reconstruction.................. 20
        13.2.  Tenant's Rights................................ 20
        13.3.  Lease To Remain In Effect...................... 20
        13.4.  Reservation Of Compensation.................... 21
        13.5.  Restoration Of Fixtures........................ 21

14.     DEFAULT............................................... 21
        14.1.  Events Of Default.............................. 21
               (a) Abandonment................................ 21
               (b) Nonpayment................................. 21
               (c) Other Obligations.......................... 21
               (d) General Assignment......................... 22
               (e) Bankruptcy................................. 22
               (f) Receivership............................... 22
               (g) Attachment................................. 22
               (h) Insolvency................................. 22
        14.2.  Remedies Upon Tenant's Default................. 22
        14.3.  Remedies Cumulative............................ 23

15.     SUBORDINATION, ATTORNMENT AND SALE.................... 23
        15.1.  Subordination To Mortgage...................... 23
        15.2.  Sale Of Landlord's Interest.................... 24
        15.3.  Estoppel Certificates.......................... 24
        15.4.  Subordination To CC&R's........................ 24

16.     SECURITY.............................................. 25
        16.1.  Deposit........................................ 25

17.     MISCELLANEOUS......................................... 25
        17.1.  Notices........................................ 25
        17.2.  Successors And Assigns......................... 26
        17.3.  No Waiver...................................... 26
        17.4.  Severability................................... 26
        17.5.  Litigation Between Parties.. .................. 27
        17.6   Surrender...................................... 27
        17.7.  Construction................................... 27
        17.8.  Entire Agreement............................... 27
        17.9.  Governing Law.................................. 27
        17.10. No Partnership................................. 27
        17.11. Financial Information.......................... 27
        17.12. Costs.......................................... 28
        17.13. Time........................................... 28
        17.14. Rules And Regulations.......................... 28
        17.15. Brokers........................................ 28
        17.16. Memorandum Of Lease............................ 28
        17.17. Corporate Authority............................ 28
        17.18. Landlord Defaults.............................. 28
 

EXHIBITS
--------

A   Location Of Premises 
B   Real Property Description 
C   Construction
D   Acknowledgement Of Lease Commencement

                                       2

 
                                     LEASE

        THIS LEASE is made and entered into as of the 6th day of December, 1996,
by and between BRITANNIA HACIENDA IV LIMITED PARTNERSHIP, a Delaware limited
partnership, hereinafter called "Landlord", and DOCUMENTUM, INC., a Delaware
corporation, hereinafter called "Tenant."

                         THE PARTIES AGREE AS FOLLOWS:

                                  1. PREMISES
                                     --------

        1.1 Premises. Landlord leases to Tenant and Tenant hires and leases from
            --------
Landlord, on the terms, covenants and conditions hereinafter set forth, the
premises (the "Premises") designated in Exhibit A attached hereto and
                                        ---------
incorporated herein by this reference, consisting of approximately 27,738
square feet of space located within Building F (the "Building") in the
BRITANNIA BUSINESS CENTER AT HACIENDA, PHASES III AND IV (the "Center") in the
CITY OF PLEASANTON, County of Alameda, State of California, commonly known as
0000 Xxxxxxxxxx Xxxxx, Xxxxx __, (xx be determined) Xxxxxxxxxx, XX 00000 and
located on the real property (the "Property" described in Exhibit B attached
                                                          ---------
hereto and incorporated herein by this reference, together with the
nonexclusive right to use any common areas improved and made available from
time to time for use by tenants of completed buildings in the Center, including
(but not limited to) any such common areas designated from time to time in any
Declaration of Covenants, Conditions and Restrictions or similar document
affecting the Center.

        1.2. Landlord's Reserved Rights. Landlord reserves the right from time
             --------------------------
to time to (i) install, use, maintain, repair and replace pipes, ducts,
conduits, wires and appurtenant meters and equipment for service to other parts
of the Building above the ceiling surfaces, below the floor surfaces, within the
walls or leading through the Premises in locations which will not materially
interfere with Tenant's use thereof, (ii) relocate any pipes, ducts, conduits,
wires and appurtenant meters and equipment included in the Premises which are so
located or located elsewhere outside the Premises, (iii) make alterations or
additions to the Building, (iv) construct, alter or add to other buildings or
improvements on the Property, (v) build adjoining to the Property, and (vi)
lease any part of the Property for the construction of improvements or
buildings. Landlord may modify or enlarge the common area, alter or relocate
accesses to the Premises, or alter or relocate any common facility. Landlord
shall not exercise rights reserved to it pursuant to this Section 1.2 in such a
manner as to materially impair Tenant's ability to conduct its activities in the
normal manner; provided, however, that the foregoing shall not limit or restrict
Landlord's right to undertake reasonable construction activity and Tenant's use
of the Premises shall be subject to reasonable temporary disruption incidental
to such activity diligently prosecuted. Nothwithstanding anything herein to the
contrary except with Tenant's prior written consent (which shall not be
unreasonably withheld or delayed), Landlord shall not exercise its rights under
this Section 1.2 in a manner which will result in a material change in the
original site plan for the Property, materially and adversely affect Tenant's
use of the Premises, reduce

                                       1

 
the number of parking spaces available to Tenant, or materially decrease the
parking ratio for the Center or the proximity of parking to the Premises.

                                    2. TERM
                                       ----

        2.1. Term. (a) The term of this occur of (i) the date which is five (5)
             ----
days after the date Landlord notifies Tenant that Landlord's work pursuant to
Section 2.4 and Exhibit C is substantially complete (but in no event before
                ---------
March 1, 1997), or (ii) the date Tenant takes occupancy of the Premises (except
as otherwise provided in Section 2.2), or (iii) March 1, 1997 (subject to
adjustment as hereinafter set forth), the earliest of such dates being herein
called the "Commencement Date," and shall end on the day immediately preceding
the date 120 Months thereafter, unless sooner terminated or extended (if
applicable) as hereinafter provided. For purposes of clause (i) of the first
sentence of this Section 2.1 (a), Landlord's work shall be deemed to be
"substantially complete" when all of the following have occurred: (A) all
improvements to be constructed by Landlord have been completed, except for
"punch list" items which do not materially interfere with Tenant's ability to
use the Premises for their intended purpose; (B) the City of Pleasanton has
issued a certificate of occupancy for the Premises; (C) all utilities reasonably
necessary for Tenant's use of the Premises for their intended purpose are
connected and available for use at the Premises; and (D) all improvements to be
constructed by Landlord as part of the common areas contemplated for, and
reasonably necessary for the use and enjoyment of, the Property have been
completed, except for "punch list" items which do not materially interfere with
Tenant's ability to use the Premises for their intended purpose, available for
use by Tenant. For purposes of clause (iii) of the first sentence of this
Section 2.1 (a), the specified date of March 1, 1997 shall be adjusted as
follows: The parties intend that Landlord shall have three (3) months to
substantially complete Landlord's work, beginning on the date on which Tenant
has delivered to Landlord, and Landlord and Tenant have mutually approved, (x) a
complete and final space plan for the interior improvements in the Premises and
(y) complete and final electrical, mechanical and other necessary specifications
for such improvements and for Tenant's proposed use of the Premises (the "Plan
Completion Date"). To the extent the time required to reach substantial
completion of Landlord's work exceeds three (3) months after the Plan Completion
Date, the March 1, 1997 date in clause (iii) of the first sentence of this
Section 2.1 (a) shall be extended by a number of days equal to the number of
days of such excess time; provided, however, that to the extent substantial
                          --------
completion of Landlord's work is delayed by (xx) any change requested by Tenant
in the final space plan and/or final specifications following the Plan
Completion Date and/or (yy) any negligence or willful misconduct of Tenant or
its agents, employees or contractors, the three (3) month period allowed for
substantial completion of Landlord's work shall be extended by a number of days
equal to the number of days of such delay (thus resulting in a reduction, by a
like number of days, of the extension of the March 1, 1997 date in clause (iii)
of the first sentence of this Section 2.1 (a)).

        (b) Notwithstanding the provisions of Section 2.1 (a), Tenant shall have
a one-time right to terminate this Lease as of the fifth (5th) anniversary of
the Commencement Date, conditional only upon (i) Tenant giving written notice of
its exercise of such right to Landlord no later than the fourth (4th)
anniversary of the Commencement Date and (ii) Tenant paying to Landlord in cash,
on or before the fifth (5th) anniversary of the Commencement Date, a termination
payment in an amount equal to the sum of (A) the unamortized portion of
Landlord's total direct costs (as described in Section 3.1 (c) below) of
construction of tenant improvements in the Premises under Section 2.4 and
Exhibit C, assuming amortization on a "level payment" basis over the ten (10)
year base term of this

                                       2

 
Lease with interest imputed at the rate of ten percent (10%) per annum, plus (B)
an amount equal to three (3) months' minimum rent at the rate applicable in the
sixtieth (60th) month of the term of this Lease under Sections 3.1 (a) and (c)
hereof; provided, however, that if, in connection with any such exercise of
        --------
Tenant's early termination right and prior to the fifth (5th) anniversary of the
Commencement Date, Landlord (or any affiliate of Landlord) and Tenant enter into
a mutually acceptable "new lease" for a larger space in the Britannia Business
Center at Hacienda (whether on Willow Road, Stoneridge Drive or Hopyard Road) or
in any other Britannia development owned by Landlord or by an affiliate of
Landlord in the San Francisco Bay Area, then Tenant shall be released from any
obligation to make the termination payment described in clause (ii) of this
sentence.

        2.2. Early Possession. Tenant shall have the right to occupy or use the
             ----------------
Premises for the purpose of installing fixtures, equipment, furniture and
furnishings and other similar work preparatory to the commencement of business
in the Premises, prior to the Commencement Date set forth in Section 2.1, which
occupancy or use shall be subject to and upon all of the terms and conditions of
this Lease, excluding the obligation to pay rent and other charges; provided,
however, that such early possession shall not advance or otherwise affect the
termination date set forth in Section 2.1; and provided further, that Tenant
shall not interfere with or delay Landlord's contractors by such early
possession and shall indemnify, defend and hold harmless Landlord and its agents
and employees from and against any and all claims, demands, liabilities,
actions, losses, costs and expenses, including (but not limited to) reasonable
attorneys' fees, arising out of or in connection with Tenant's early entry upon
the Premises hereunder.

        2.3. Delay In Possession. Landlord agrees to use its best reasonable
             -------------------
efforts to complete prior to the Commencement Date the work described in Section
2.4 and Exhibit C; provided, however, Landlord shall not be liable for any
        ---------
damages caused by any delay in the completion of such work, nor shall any such
delay affect the validity of this Lease or the obligations of Tenant hereunder,
except as otherwise expressly provided in Section 2.1 (a) hereof with respect to
the determination of the Commencement Date.

        2.4. Construction. The obligation of Landlord to perform work to improve
             ------------
the Premises for occupancy is set forth in Exhibit C attached hereto and
                                           ---------
incorporated herein by this reference. Except as set forth in this Section 2.4
and in Exhibit C, Landlord shall have no responsibilities or obligations with
       ---------
respect to preparation of the Premises for Tenant's occupancy. Acceptance by
Tenant of possession of the Premises after performance of such work, if any, by
Landlord shall constitute acceptance by Tenant of such work in its then
completed condition and Landlord shall have no further responsibility of any
kind or character for improvement of the Premises or in connection with such
work; provided, however, that within thirty (30) days after the Commencement
      --------
Date, Tenant may furnish to Landlord a "punch list" identifying any items or
matters in the Premises which are not constructed in accordance with the plans
and specifications approved under Exhibit C hereto and Landlord shall promptly
                                  ---------
and diligently correct all such matters at its sole cost and expense; and
provided further, however, that notwithstanding anything to the contrary
----------------
contained herein, Landlord warrants to Tenant, effective as of the Commencement
Date, that (i) the Building, the interior improvements in the Premises and all
common areas necessary to serve the Building are substantially completed and
are free from material defects in design and construction, (ii) the electrical,
mechanical, plumbing, lighting, air conditioning and heating systems, and the
loading doors, if any, on the Building are in good operating condition (to the
extent necessary to serve the Premises) and are free of material defects in
design, equipment and/or

                                       3

 
installation, and (iii) the interior improvements in the Premises have been
constructed in compliance in all material respects with the plans and
specifications developed and approved pursuant to Exhibit C. If it is
                                                  ---------
determined that the warranty set forth in the preceding sentence has been
violated in any respect, then it shall be the responsibility of Landlord, after
receipt of written notice from Tenant setting forth with specificity the nature
of the violation, to promptly, at Landlord's sole cost, correct the
condition(s) constituting such violation. Tenant's failure to give such written
notice to Landlord within one (1) year after the Commencement Date shall give
rise to a conclusive presumption that Landlord has complied with all Landlord's
obligations under this Section 2.4 and Exhibit C except with respect to latent
                                       ---------
defects. TENANT ACKNOWLEDGES THAT THE FOREGOING WARRANTIES ARE IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THE PHYSICAL CONDITION OF
THE BUILDING AND IMPROVEMENTS TO BE CONSTRUCTED BY LANDLORD AND THAT LANDLORD
MAKES NO OTHER WARRANTIES EXCEPT AS EXPRESSLY SET FORTH IN THIS LEASE.

        2.5. Acknowledgement Of Lease Commencement. Upon commencement of the
             -------------------------------------
term of this Lease, Landlord and Tenant shall execute a written acknowledgement
of the Commencement Date, date of termination and related matters, substantially
in the form attached hereto as Exhibit D (with appropriate insertions), which
                               ---------
acknowledgement shall be deemed to be incorporated herein by this reference.

        2.6. Holding Over. If Tenant holds possession of the Premises after the
             ------------
term of this Lease, with Landlord's written consent, then except as otherwise
specified in such consent, Tenant shall become a tenant from month to month at
125% of the rental and otherwise upon the terms herein specified for the period
immediately prior to such holding over and shall continue in such status until
the tenancy is terminated by either party upon not less than thirty (30) days
prior written notice. If Tenant holds possession of the Premises after the term
of this Lease without Landlord's written consent, then Landlord in its sole
discretion may elect (by written notice to Tenant) to have Tenant become a
tenant either from month to month or at will, at 150% of the rental (prorated
                                                 ----
on a daily basis for an at-will tenancy, if applicable) and otherwise upon the
terms herein specified for the period immediately prior to such holding over,
or may elect to pursue any and all legal remedies available to Landlord under
applicable law with respect to such unconsented holding over by Tenant. Tenant
shall indemnify and hold Landlord harmless from any loss, damage, claim,
liability, cost or expense (including reasonable attorney's fees) resulting
from any delay by Tenant in surrendering the Premises (except with Landlord's
prior written consent), including but not limited to any claims made by a
succeeding tenant by reason of such delay. Acceptance of rent by Landlord
following expiration or termination of this Lease shall not constitute a
renewal of this Lease.

        2.7. Option To Extend Term. Tenant shall have the option to extend the
             ---------------------
term of this Lease, at the minimum rental set forth in Section 3.1(d) and
otherwise upon all the terms and provisions set forth herein with respect to the
initial term of this Lease, for one additional period of five years, commencing
upon expiration of the initial term hereof. Exercise of such option with respect
to such extended term shall be by written notice to Landlord at least six (6)
months and not more than eight (8) months prior to the expiration of the initial
term hereof. If Tenant is in default of any material obligation hereunder on the
date of such notice or on the date any extended term is to commence, which
default is continuing beyond notice and the expiration of any applicable cure
period, then the option shall be of no force or effect, the extended term shall
not commence and this Lease shall expire at the end of the initial term hereof
(or at such earlier time as Landlord may elect pursuant to the default
provisions of this Lease). If

                                       4

 
Tenant properly exercises its extension option under this Section, then all
references in this Lease (other than in this Section 2.7) to the "term" of this
Lease shall be construed to include the extension term thus elected by Tenant.
Except as expressly set forth in this Section 2.7, Tenant shall have no right
to extend the term of this Lease beyond its prescribed term.

                                   3. RENTAL
                                      ------

       3.1. Minimum Rental.
            --------------

        (a) Tenant shall pay to Landlord as minimum rental for the Premises, in
advance, without deduction, offset, notice or demand, except as otherwise
provided herein, on or before the Commencement Date and on or before the first
day of each subsequent calendar month of the term of this Lease, the following
amounts per month:

                        Months          Minimum Rental
                        ------          --------------

                        0 - 4           $22,623.30
                        5 - 120         $29,124.90

In addition to the above, effective as of each anniversary of the
Commencement Date during the term of this Lease, minimum rental as per Section
3.1 (a) (and Section 3.1 (c), if applicable) will be increased by a factor of
four per cent (4%) per annum over the rental rates in effect immediately prior
to such anniversary.

If the obligation to pay minimum rental hereunder commences on other than
the first day of a calendar month or if the term of this Lease terminates on
other than the last day of a calendar month, the minimum rental for such first
or last month of the term of this Lease, as the case may be, shall be prorated
based on the number of days the term of this Lease is in effect during such
month. If an increase in minimum rental becomes effective on a day other than
the first day of a calendar month, the minimum rental for that month shall be
the sum of the two applicable rates, each prorated for the portion of the month
during which such rate is in effect.

        (b) The minimum rental amounts specified in this Section 3.1 are based
upon an area of 27,738 square feet for the Premises. If the actual area of the
Premises, when completed, is greater or less than 27,738 square feet, the
minimum rental specified in this Section 3.1 shall be adjusted proportionately
to the change in the area of the Premises, as determined in good faith by
Landlord's architect on the basis of measurement from the exterior faces of
exterior walls, from the centerline of interior demising walls, and from the
drip line of any exterior overhangs.

        (c) The minimum rental amounts specified in this Section 3.1 are based
upon an estimated tenant improvement allowance of Twenty Five Dollars ($25.00)
per square foot for the work to be performed by Landlord on the Premises under
Section 2.4 and Exhibit C. If Landlord's total direct costs of such work
                ---------
(including, but not limited to, construction costs, permit fees and charges,
architects', engineers' and other consulting and professional fees and all other

                                       5

 
related costs incurred in connection with the design and construction of
the work) exceed the product of Twenty Five Dollars ($25.00) times the area of
the Premises (in square feet) as determined in good faith by Landlord's
architect on the basis of measurement described in Section 3.1 (b), then
Tenant's minimum monthly rental hereunder, beginning on the Commencement Date
and continuing throughout the term hereof, shall be increased by an amount
equal to one percent (1%) of the amount by which such total costs exceed the
product of Twenty Five Dollars ($25.00) times such area.

        Notwithstanding the above, Landlord is not committed to spend more than
Thirty Dollars ($30.00) per sq. ft. on these improvements.

        (d) If Tenant properly exercises its right to extend the term of this
Lease pursuant to Section 2.7 hereof, the minimum rental during the first
extended term shall be equal to the fair market rental value of the Premises (as
theretofore improved under Section 2.4 and Exhibit C) (including any cost of
                                           ---------
living adjustments or other rental increase provisions then customary in the
relevant market for comparable commercial leases, determined as of the
commencement of such extended term in accordance with this paragraph). Upon
Landlord's receipt of a proper notice of Tenant's exercise of its option to
extend the term of this Lease, the parties shall have sixty (60) days in which
to agree on the fair market rental (including any applicable rental increase
provisions) for the Premises (as theretofore improved under Section 2.4 and
Exhibit C but specifically excluding any improvements which were installed by
---------
Tenant at its own cost) at the commencement of the extended term for the uses
permitted hereunder. If the parties agree on such fair market rental and rental
increase provisions (if any), they shall execute an amendment to this Lease
stating the amount of the applicable minimum monthly rental and any applicable
rental increase provisions. If the parties are unable to agree on such rental
(including any applicable rental increase provisions) within such sixty (60) day
period, then within fifteen (15) days after the expiration of such period each
party, at its cost and by giving notice to the other party, shall appoint a real
estate appraiser with at least five (5) years experience appraising similar
commercial properties in the city in which the Property is located or
neighboring areas to appraise and set the fair market rental and any applicable
rental increase provisions for the Premises at the commencement of the extended
term. If either party fails to appoint an appraiser within the allotted time,
and such failure continues for five (5) business days after written notice from
the other party that the party to which notice is given has failed to make a
timely appointment of an appraiser, then the single appraiser appointed by the
other party shall be the sole appraiser. If an appraiser is appointed by each
party and the two appraisers so appointed are unable to agree upon a fair market
rental (and any appropriate rental increase provisions) within thirty (30) days
after the appointment of the second, they shall appoint a third qualified
appraiser within ten (10) days after expiration of such thirty (30) day period;
if they are unable to agree upon a third appraiser, either party may, upon not
less than five (5) days notice to the other party, apply to the Presiding Judge
of the Superior Court for the county in which the Property is located for the
appointment of a third qualified appraiser. Each party shall bear its own legal
fees in connection with appointment of the third appraiser and shall bear one-
half of any other costs of appointment of the third appraiser and of such third
appraiser's fee. The third appraiser, however selected, shall be a person who
has not previously acted for either party in any capacity. Within thirty (30)
days after the appointment of the third appraiser, a majority of the three
appraisers shall set the fair market rental and any applicable rental increase
provisions for the extended term and shall so notify the parties. If a majority
are unable to agree within the allotted time, (i) the three appraised fair
market rentals shall be added together and divided by three and the resulting
quotient shall be the fair market rental for the extended term,

                                       6

 
and (ii) the mathematical average (or the nearest reasonable approximation
thereto) of the two rental increase provisions that are most closely comparable,
which determinations shall be binding on the parties and shall be enforceable in
any further proceedings relating to this Lease.

        3.2. Late Charge. If Tenant fails to pay when due rental or other
             -----------
amounts due Landlord hereunder, such unpaid amounts shall bear interest for the
benefit of Landlord at a rate equal to the lesser of eight percent (8%) per
annum or the maximum rate permitted by law, from the date due to the date of
payment. In addition to such interest, Tenant shall pay to Landlord a late
charge in an amount equal to five percent (5%) of any installment of minimum
rental and any other amounts due Landlord if not paid in full on or before the
fifth (5th) day following notice from Landlord that such rental or other amount
is due; provided however, that if any payment of rent or other amounts by
        --------
Tenant is more than five (5) days late and Landlord gave written notice of
delinquency to Tenant prior to such payment, then for the next twelve (12)
calendar months after such written notice was given, Tenant shall be liable for
late charges on any further payment of rental or other amounts that is not paid
on or before the fifth (5th) day after such rental or other amount is due,
without any requirement of prior notice from Landlord to Tenant that such rental
-------
or other amount is due. Tenant acknowledges that late payment by Tenant to
Landlord of rental or other amounts due hereunder will cause Landlord to incur
costs not contemplated by this Lease, including, without limitation, processing
and accounting charges and late charges which may be imposed on Landlord by the
terms of any loan relating to the Property. Tenant further acknowledges that is
extremely difficult and impractical to fix the exact amount of such costs and
that the late charge set forth in this Section 3.2 represents a fair and
reasonable estimate thereof. Acceptance of any late charge by Landlord shall not
constitute a waiver of Tenant's default with respect to overdue rental or other
amounts, nor shall such acceptance prevent Landlord from exercising any other
rights and remedies available to it. Acceptance of rent or other payments by
Landlord shall not constitute a waiver of late charges or interest accrued with
respect to such rent or other payments or any prior installments thereof, nor of
any other defaults by Tenant, whether monetary or nonmonetary in nature,
remaining uncured at the time of such acceptance of rent or other payments.

                                   4. TAXES
                                      -----

        4.1. Personal Property. Tenant shall be responsible for and shall pay
             -----------------
prior to delinquency all taxes and assessments levied against or by reason of
all alterations and additions and all other items installed or paid for by
Tenant under this Lease, and the personal property, trade fixtures and all of
the property placed by Tenant in or about the Premises. Upon request by
Landlord, Tenant shall furnish at any time during the term of this Lease any of
said alterations, additions or personal property, whether or not belonging to
Tenant, shall be taxed or assessed as part of the Property, then such tax or
assessment shall be paid by Tenant to Landlord immediately upon presentation by
Landlord of copies of the tax bills in which such taxes and assessments are
included and shall, for the purposes of this Lease, be deemed to be personal
property taxes or assessments under this Section 4.1.

        4.2. Real Property. To the extent the real property taxes and
             -------------
assessments on the Premises are assessed separately from the remainder of the
Property, Tenant shall be responsible for and shall pay prior to delinquency all
such taxes and assessments levied against the Premises. Upon request by

                                       7

 
Landlord, Tenant shall furnish Landlord with satisfactory evidence of
payment thereof. To the extent the Premises are taxed or assessed as part of
the Property, such real property taxes and assessments shall constitute
Operating Expenses (as that term is defined in Section 5.2 of this Lease) and
shall be paid in accordance with the provisions of Article 5 of this Lease.

                             5. OPERATING EXPENSES
                                ------------------

       5.1. Payment Of Operating Expenses
            -----------------------------

        (a) Tenant shall pay to Landlord, at the time and in the manner
hereinafter set forth, as additional rental, an amount equal to forty three
point one nine percent (43.19%) (Tenant's Operating Cost Share) of the
Operating Expenses defined in Section 5.2; provided however, that during the
                                           --------
first four (4) months after the Commencement Date, Tenant's Operating Cost Share
shall be thirty-three point five percent (33.5%).

        (b) Tenant's Operating Cost Share as specified in paragraph (a) of this
Section is based upon an area of 27,738 square feet for the Premises and an
aggregate area of 64,227 square feet for the buildings owned by Landlord on the
Property. If the actual area of the Premises (when completed) or of the
buildings owned by Landlord, as determined in good faith by Landlord's
architect on the basis of measurement described in Section 3.1 (b), differs
from the assumed numbers set forth above, Tenant's Operating Cost Share shall
be adjusted to reflect the actual areas so determined.

        (c) If Landlord constructs additional buildings on the Property (or on
any adjacent property owned by Landlord and operated, for common area purposes,
on an integrated basis with the Property) from time to time, Tenant's Operating
Cost share shall be adjusted to be equal to the percentage determined by
dividing the gross square footage of the Premises (including any additional
space occupied by Tenant from time to time) by the gross square footage of all
buildings located on portions of the Property owned by Landlord (or any
applicable adjacent property owned by Landlord as described above). In
determining said percentage, a building shall be taken into account from and
after the date on which a tenant first enters into possession of the building or
a portion thereof.

        5.2. Definition Of Operating Expenses. Subject to the exclusions and
             --------------------------------
provisions hereinafter contained, the term "Operating Expenses" shall mean the
total costs and expenses incurred by or allocable to Landlord for management,
operation and maintenance of the Building and the Property (and any applicable
adjacent property owned by Landlord as described above), including, without
limitation, (i) insurance, property management, building maintenance,
landscaping and common area maintenance; (ii) all utilities and services; (iii)
real and personal property taxes and assessments or substitutes therefor and
new taxes on landlords in addition to taxes now in effect, but excluding (aa)
fees, exactions and taxes imposed as a condition to the issuance of any
entitlements or building permits related to the Property, and (bb) gift taxes,
inheritance taxes, transfer taxes and net income taxes of Landlord; (iv)
supplies, equipment, utilities and tools used in management, operation and
maintenance: (v) capital improvements to the Property or the buildings and
other improvements thereon, amortized over the reasonable useful life of the
applicable improvement, (aa) which reduce or will cause future reduction of
other items of Operating Expenses for which Tenant is otherwise required to
contribute (provided that the amortizable costs for this category of
            --------
improvement shall be limited to the amount

                                       8

 
of the reasonably estimated savings to be produced thereby), or (bb) which
are required by any law, ordinance, regulation or order of any governmental
authority that becomes applicable to the Property after the Commencement Date,
or (cc) of which Tenant has use or which benefit Tenant (provided that
amortizable improvements under this category shall be limited to those which
are approved in writing by Tenant or which are merely a reasonably necessary
repair or replacement of an existing improvement with one of like kind and
quality, in which event no such approval by Tenant shall be required); and (vi)
any other costs allocable to or paid by Landlord, as owner of the Building,
pursuant to the terms of any declarations of covenants, conditions and
restrictions affecting the Property (or any applicable adjacent property owned
by Landlord as described above). Capital improvements shall not include any
costs attributable to increasing the size of or otherwise expanding the
Building or the cost of the work for which Landlord is required to pay under
Section 2.4. The distinction between items of ordinary operating maintenance
and repair and items of a capital nature shall be made in accordance with
generally accepted accounting principles applied on a consistent basis.
Notwithstanding any other provisions of this Section 5.2, Operating Expenses
shall not include any of the following:

        (A) property management fees in excess of three percent of gross rents
from the Property;

        (B) the cost to repair damage caused by (i) fire, earthquake or other
peril, or (ii) the negligence of Landlord, its agents, employees or
contractors, or the other tenants of the Property or their respective agents,
employees, contractors or invitees;

        (C) costs associated with procurement of new tenants, preparation of
their spaces and enforcement of their leases, including (but not limited to)
brokerage commissions, tenant improvement costs and attorneys' fees;

        (D) the cost of maintenance and repair of structural elements of the
buildings located on the Property from time to time;

        (E) the cost to repair any defects in design, construction or equipment
for any building located on the Property from time to time, to the extent
resulting from or attributable to work undertaken by Landlord or by its
contractors on Landlord's behalf (including, but not limited to, costs to
correct any building code violations caused by or attributable to Landlord's
work);

        (F) the cost to investigate and/or remediate any contamination by
hazardous or toxic substances or wastes, except to the extent caused by Tenant
or its agents, employees, contractors or invitees; or

        (G) the cost to correct any violation of any declaration of covenants,
conditions and restrictions applicable to the Property, except to the extent
such violation is caused by Tenant or its agents, employees, contractors or
invitees.

        5.3 Determination Of Operating Expenses. On or before the Commencement
            -----------------------------------
Date and during the last month of each calendar year of the term of this Lease
("Lease Year"), or as soon thereafter as practical, Landlord shall provide
Tenant notice of Landlord's estimate of the Operating Expenses for the ensuing
Lease Year or applicable portion thereof. On or before the first day of each
month during the ensuing Lease Year or applicable portion thereof, beginning on
the Commencement Date, Tenant shall pay to Landlord Tenant's

                                       9

 
Operating Cost Share of the portion of such estimated Operating Expenses
allocable (on a prorate basis) to such month; provided, however, that if such
notice is not given in the last month of a Lease year, Tenant shall continue to
pay on the basis of the prior year's estimate, if any, until the month after
such notice is given. If at any time or times it appears to Landlord that the
actual Operating Expenses will vary from Landlord's estimate by more than five
percent (5%), Landlord may, by notice to Tenant, revise its estimate for such
year and subsequent payments by Tenant for such year shall be based upon such
revised estimate.

        5.4 Final Accounting For Lease Year. Within ninety (90) days after the
            -------------------------------
close of each Lease Year, or as soon after such 90-day period as practicable,
Landlord shall deliver to Tenant a statement of Tenant's Operating Cost Share
of the Operating Expenses for such Lease Year prepared by Landlord from
Landlord's books and records, which statement shall be final and binding on
Landlord and Tenant except as otherwise specifically provided herein. Failure
or inability of Landlord to deliver the annual statement within such ninety
(90) day period shall not impair or constitute a waiver of Tenant's obligation
to pay Operating Expenses, or cause Landlord to incur any liability for
damages. Notwithstanding any other provisions of this Section 5.4, within sixty
(60) days after receipt of any statement from Landlord setting forth actual
Operating Expenses and Tenant's Operating Cost Share for any period (a
"Statement"), Tenant shall have the right to audit or review, directly or
through its designated representative, Landlord's books and records relating to
Operating Expenses for the period covered by the Statement, provided that such
audit shall be exercisable only during normal business hours, on not less than
ten (10) days prior written notice to Landlord, and at Tenant's sole cost and
expense, except as hereinafter provided. To the extent that Tenant, on the
basis of such audit, disputes any item in the applicable Statement or in the
calculation of Tenant's obligations thereunder, Tenant shall give Landlord
written notice of the disputed items, in reasonable detail and with reasonable
supporting information, within thirty (30) days after the expiration of
Tenant's 60-day audit period, and Landlord and Tenant shall negotiate
diligently and in good faith to try to resolve the dispute. If Landlord and
Tenant are unable to resolve the dispute within thirty (30) days after
Landlord's receipt of Tenant's written notice specifying the disputed items,
then either party may elect, by written notice to the other, to have the
dispute resolved through an audit by an independent Certified Public Accountant
who has not previously rendered professional services to either party. Such
review and determination by an independent CPA shall be based on generally
accepted accounting principles and tax accounting principles, consistently
applied. The independent CPA shall be selected by mutual agreement of Landlord
and Tenant; if they are unable to agree on such selection within twenty (20)
days after a party's notice of desire to submit the dispute to a CPA review,
then the independent CPA shall be appointed by the Presiding Judge of the
Alameda County Superior Court upon application by either party (with notice to
the other party). If it is determined, on the basis of Landlord's Statement or
by mutual agreement of Landlord and Tenant or by independent CPA review, that
Tenant owes an amount that is more or less than the estimated payments
previously made by Tenant for the applicable period, then Tenant or Landlord,
as the case may be, shall pay the deficiency or overpayment to the other party
within thirty (30) days after final determination of such underpayment or
overpayment. The expenses of the independent CPA, if any, shall be borne by
Tenant unless the CPA's determination is that the Statement reflects an
overstatement of five percent (5%) or more in Tenant's obligation for Operating
Expenses for the applicable period, in which event the expenses of the
independent CPA shall be borne by Landlord. Each party agrees to maintain the
confidentiality of the findings of any audit in accordance with the provisions
of this Section 5.4.

                                      10

 
       5.5 Proration. If the Commencement Date falls on a day other than the 
           ---------
first day of a Lease Year or if this Lease terminates on a day other than the 
last day of Lease Year, the amount of Tenant's Operating Cost Share payable by 
Tenant applicable to such first and last partial Lease Year shall be prorated on
the basis which the numbers of days during such Lease Year in which this Lease 
is in effect bears to 365. The termination of this Lease shall not affect the 
obligations of Landlord and Tenant pursuant to Section 5.4 to be performed after
such termination.

                                 6. UTILITIES
                                    ---------

       6.1 Payment. Commencing with the Commencement Date and thereafter 
           -------
throughout the term of this Lease, Tenant shall pay, before delinquency, all 
charges for water, gas, heat, light, electricity, power, sewer, telephone, alarm
system, janitorial and other services or utilities applied to or consumed in or 
upon the Premises, including ant taxes on such services and utilities. It is the
intention of the parties that all such services shall be separately metered to 
the Premises. In the event that any of such services supplied to the Premises 
are not separately metered, then the amount thereof shall be an item of
Operating Expenses and shall be paid as provided in Article 5.

       6.2 Interruption. There shall be no abatement of rent or other charges
           ------------
required to be paid hereunder and Landlord shall not be liable in damages or 
otherwise for interruption of failure of any service or utility furnished to or 
used in the Premises because of accident, making of repairs, alterations or 
improvements, severe weather, difficulty or inability in obtaining services or 
supplies, labor difficulties or any other cause. Notwithstanding the foregoing 
provisions of this Section 6.2, however, in the event of any interruption or 
failure of any services or utility to the Premises which is caused in whole or 
in part by the negligence or willful misconduct of Landlord or its agents or 
employees, which continues for more than 48 hours and which materially impairs 
Tenant's ability to use the Premises for the intended purpose hereunder, then 
Tenant's rental obligations under this Lease shall be abated in proportion to 
the degree of impairment of Tenant's use of the Premises, and such abatement 
shall be retroactive to the commencement of the interruption or failure and 
shall continue until Tenant's use of the premises is no longer materially 
impaired thereby.

                                7. ALTERATIONS         
                                   -----------

       7.1. Right to Make Alterations. Tenant shall make no alterations, 
            -------------------------
additions or improvements to the Premises, other than interior non-structural 
alterations not affecting any Building systems and costing less than Twenty-Five
Thousand Dollars ($25,000.00) in each instances, without the prior written 
consent of Landlord. Tenant shall give prior written notice to Landlord of any
alterations, additions or improvements that do not require Landlord's prior
written consent under the preceding sentence, including copies of any plans and
specifications relating to such proposed alterations, additions or improvements.
All such alterations, additions or improvements shall be completed with due
diligence in a first-class workmanlike manner and in compliance with plans and
specifications approved in writing by Landlord (as to alterations, additions or
improvements for which Landlord's prior written consent is required) and all
applicable laws, ordinances, rules and regulations. If Tenant wishes to know in
advance whether it will be required to remove any specific alteration, addition,
or

                                      11

 
improvement upon termination of this Lease, as contemplated in Section 7.2
hereof, then Tenant shall make an express request for such a determination by
Landlord at the time Tenant requests Landlord's approval of, or gives Landlord
prior notice of, the applicable alteration, addition or improvement; if Tenant
makes such a written request and Landlord does not, in response thereto, advise
Tenant that Landlord intends to require (or at least to reserve the right to
require) removal of the applicable alteration, addition or improvement upon
termination of this Lease, then Landlord shall not be entitled to later request
such removal, notwithstanding any contrary provisions in Section 7.2 hereof.

        7.2. Title To Alterations. All alterations, additions and improvements
             --------------------
installed pursuant to this Lease shall be part of the Building and the property
of Landlord, unless Landlord elects to require Tenant to remove the same upon
the termination of this Lease; provided, however, that the foregoing shall not
apply to Tenant's movable furniture and trade fixtures not affixed to the
Property.

        7.3. Tenant Fixtures. Notwithstanding the foregoing, Tenant may install,
             ---------------
remove and reinstall trade fixtures without Landlord's prior written consent,
except that any fixtures which are affixed to the Premises or which affect the
exterior or structural portions of the Building shall require Landlord's
written approval (which approval shall not be unreasonably withheld). The
foregoing shall apply to Tenant's signs, logos and insignia, all of which
Tenant shall have the right to place and remove and replace solely with
Landlord's prior written consent as to location, size and composition (which
consent shall not be unreasonably withheld). Tenant shall immediately repair
any damage caused by installation and removal of fixtures under this Section
7.3.

        7.4. No Liens. Tenant shall at all times keep the Premises free from all
             --------
liens and claims of any contractors, subcontractors, materialmen, suppliers or
any other parties employed either directly or indirectly by Tenant in
construction work on the Premises. Tenant may contest any claim of lien, but
only if, prior to such contest, Tenant either (i) posts security in the amount
of the claim, plus estimated costs and interest, or (ii) records a bond of a
responsible corporate surety in such amount as may be required to release the
lien from the Premises. Tenant shall indemnify, defend and hold Landlord
harmless against liability, loss, damage, cost and all other expenses,
including, without limitation, reasonable attorneys' fees, arising out of claims
of any lien for work performed or materials or supplies furnished at the
request of Tenant or persons claiming under Tenant.

                          8. MAINTENANCE AND REPAIRS
                             -----------------------

                                      12

 
        8.1. Landlord's Work.
             ---------------

        (a) Landlord shall repair and maintain or cause to be repaired and
maintained those portions of the Building outside of the Premises, the common
areas of the Property, and the roof, exterior walls and other structural
portions of the Building. The cost of all work performed by Landlord under this
Section 8.1 (a) shall be an Operating Expense hereunder, except as otherwise
expressly provided in Section 5.2 hereof and/or to the extent such work (i) is
required due to the negligence of Landlord or any other tenant of the Building,
(ii) is a service to a specific tenant or tenants, other than Tenant, for which
Landlord has received or has the right to receive full reimbursement, (iii) is
a capital expense not includible as an Operating Expense under Section 5.2
hereof, or (iv) is required due to the negligence or willful misconduct of
Tenant or its agents, employees or invitees (in which event Tenant shall bear
the full cost of such work pursuant to the indemnification provided in Section
10.6 hereof). Tenant

                                      13

 
knowingly and voluntarily waives the right to make repairs at Landlord's
expense, or to offset the cost thereof against rent, under any law, statute,
regulation or ordinance now or hereafter in effect.

        (b) Notwithstanding any contrary provisions of Section 8.1 (a) hereof or
of any other provision of this Lease, to the extent a substantially complete
replacement (as opposed to ordinary or routine maintenance or repair) is
required from time to time with respect to the roof or major building systems
(HVAC, plumbing, electrical and mechanical systems) of the Building, Landlord
shall perform such replacement when and as reasonably required. To the extent
such replacement is required as a result of defective design, construction,
installation or materials, or as a result of the negligence or willful
misconduct of Landlord or its agents or employees, or as a result of the
negligence or willful misconduct of any other tenant of the Property other than
Tenant or of any such other tenant's agents, employees or invitees, such
replacement shall be at Landlord's sole cost and expense, subject to any rights
of reimbursement Landlord may have against contractors, suppliers, other tenants
or other third parties. To the extent such replacement is required as a result
of the negligence or willful misconduct or Tenant or its agents, employees or
invitees, Tenant shall bear the full cost of such work pursuant to the
indemnification provided in Section 10.6, but subject to the waiver of liability
set forth in Section 10.4 hereof. To the extent such replacement is required as
a result of casualty or condemnation, the provisions of Article 13 hereof shall
be controlling. To the extent such replacement is required due to ordinary wear
and tear or obsolescence, the cost of such replacement shall be amortized by
Landlord over the useful life of the replacement improvement or system and
Tenant shall reimburse to Landlord, as additional rent and not as an Operating
Expense, on a monthly basis or at other regular intervals as reasonably
requested by Landlord, Tenant's pro rata share (calculated on the same basis as
Tenant's Operating Cost Share) of the amortized cost of such replacement
allocable to the period of time from the date of replacement until the
expiration of the term of this Lease.

        8.2. Tenant's Obligation for Maintenance.
             -----------------------------------

        (a) Good Order. Condition and Repair. Subject to the provisions of
            --------------------------------
Section 2.4 hereof, by accepting possession of the Premises, Tenant acknowledges
that the Premises are in good and sanitary order, condition and repair. Except
as provided in Section 8.1 hereof, Tenant at its sole cost and expense shall
keep and maintain in good and sanitary order, condition and repair the Premises
and every part thereof, wherever located, including but not limited to the
signs, interior, the face of the ceiling over Tenant's floor space, HVAC
equipment and related mechanical systems serving the Premises (for which
equipment and systems Tenant shall enter into a service contract with a person
or entity designated or approved by Landlord), all doors, door checks, windows,
plate glass, door fronts, exposed plumbing and sewage and other utility
facilities, fixtures, lighting, wall surfaces, floor surfaces and ceiling
surfaces and all other interior repairs, foreseen and unforeseen, as required.

        (b) Landlord's Remedy. If Tenant, after notice from Landlord, fails to
            -----------------
make or perform promptly any repairs or maintenance which are the obligation of
Tenant hereunder, Landlord shall have the right, but shall not be required, to
enter the Premises and make the repairs or perform the maintenance necessary to
restore the Premises to good and sanitary order, condition and repair.
Immediately on demand from Landlord, the cost of such repairs shall be due and
payable by Tenant to Landlord.

        (c) Condition Upon Surrender. At the expiration or sooner termination of
            ------------------------
this Lease, Tenant shall surrender the Premises, including any

                                      14

 
additions, alterations and improvements thereto, broom clean, in good and
sanitary order, condition and repair, ordinary wear and tear and damage due to
casualty and condemnation excepted, first, however, removing all goods and
effects of Tenant and all and fixtures and items required to be removed or
specified to be removed at Landlord's election pursuant to this Lease, and
repairing any damage caused by such removal. Tenant expressly waives any and
all interest in any personal property and trade fixtures not removed from the
Premises by Tenant at the expiration or termination of this Lease, agrees that
any such personal property and trade fixtures may, at Landlord's election, be
deemed to have been abandoned by Tenant, and authorizes Landlord (at its
election and without prejudice to any other remedies under this Lease or under
applicable law) to remove and either retain, store or dispose of such property
at Tenant's cost and expense, and Tenant waives all claims against Landlord for
any damages resulting from any such removal, storage, retention or disposal.

                              9. USE OF PREMISES
                                 ---------------

        9.1. Permitted Use. Tenant shall use the Premises solely for general
             -------------
office and administrative purposes, non-retail marketing and sales
demonstrations and training classes, and for no other purpose without the prior
written consent of Landlord (which consent shall not be unreasonably withheld).

        9.2. No Nuisance. Tenant shall not use the Premises for or carry on or
             -----------
permit upon the Premises or any part thereof any offensive, noisy or dangerous
trade, business, manufacture, occupation, odor or fumes, or any nuisance or
anything against public policy, nor interfere with the rights or business of
any other tenants or of Landlord in the Building, nor make any other
unreasonable use of the Premises. Tenant shall not do or permit anything to be
done in or about the Premises, nor bring nor keep anything therein, which will
in any way cause the Premises to be uninsurable with respect to the insurance
required by this Lease or with respect to standard fire and extended coverage
insurance with vandalism, malicious mischief and riot endorsements.

        9.3. Compliance With Laws. Tenant shall not use the Premises or permit
             --------------------
the Premises to be used in whole or in part for any purpose or use that is in
violation of any applicable laws, ordinances, regulations or rules of any
governmental agency or public authority. Tenant shall keep the Premises equipped
with all safety appliances required by law, ordinance or insurance on the
Premises, or any order or regulation of any public authority because of Tenant's
particular use of the Premises (excluding any certificate of occupancy to be
obtained by Landlord under Sections 2.1 and 2.4). Tenant shall procure all
licenses and permits required for use of the Premises. Tenant shall use the
Premises in strict accordance with all applicable ordinances, rules, laws and
regulations and shall comply with all requirements of all governmental
authorities now in force or which may hereafter be in force pertaining to the
use of the Premises by Tenant, including, without limitation, regulations
applicable to noise, water, soil and air pollution, and making such
nonstructural alterations and additions thereto as may be required from time to
time by such laws, ordinances, rules, regulations and requirements of
governmental authorities or insurers of the Premises (collectively,
"Requirements" because of Tenant's construction of improvements in or other
particular use of the Premises. Any structural alterations or additions required
from time to time by applicable Requirements because of Tenant's construction of
improvements in or other particular use of the Premises shall, at Landlord's
election, either (i) be made by Tenant, at Tenant's sole cost and expense, in
accordance with the procedures and standards set forth in Section 7.1 for
alterations by Tenant, or (ii) be made

                                      15

 
by Landlord at Tenant's sole cost and pay to Landlord as additional rent, within
ten (10) days after demand by Landlord, an amount equal to all costs incurred by
landlord in connection with such alterations or additions. The judgment of any
court, or the admission by Tenant in any proceeding against Tenant, that Tenant
has violated any law, statute, ordinance or governmental rule, regulation or
requirement shall be conclusive of such violation as between Landlord and
Tenant. Notwithstanding any other provisions of this Section 9.3, in no event
shall Tenant be liable or obligated (A) to make any seismic upgrades or
improvements, unless (and then only to the extent) required as a result of any
alterations, additions or improvements made by Tenant in or about the Premises;
(B) to remove or encapsulate any asbestos, unless (and then only to the extent)
such asbestos was brought onto the Property by Tenant or its agents, employees,
contractors or invitees; or (C) to undertake any action to comply with the
Americans with Disabilities Act, unless (and then only to the extent) such
action is required as a result of Tenant's particular use of the Premises, the
conduct of Tenant's business or the making of any alterations, additions or
improvements by Tenant in or about the Premises.

        9.4. Liquidation Sales. Tenant shall not conduct or permit to be
             -----------------
conducted any bankruptcy sale, liquidation sale, or going out of business sale,
in, upon or about the Premises, whether said auction or sale be voluntary,
involuntary or pursuant to any assignment for the benefit of creditors, or
pursuant to any bankruptcy or other insolvency proceeding.

        9.5. Environmental Matters. Without limiting the generality of Tenant's
             ---------------------
obligations set forth in Section 9.3 of this Lease:

        (a) Tenant shall not cause or permit any hazardous or toxic substance or
hazardous waste (as defined in any federal, state or local law, ordinance or
regulation applicable to such substances or wastes) to be brought upon, kept,
stored or used on or about the Property without the prior written consent of
Landlord. Nothing in this Section 9.5 (a) shall, however, prohibit Tenant from
using ordinary office and cleaning products and other materials reasonably
necessary for the conduct of Tenant's business for the permitted uses described
in Section 9.1 hereof, regardless of whether such materials constitute
hazardous or toxic substances or hazardous wastes, so long as Tenant provides
Landlord with prior or concurrent written notice of such use (other than with
respect to ordinary office and cleaning products, for which no such notice is
required) and complies with the requirements of Sections 9.5 (b) and (c) with
respect to such use.

        (b) Tenant shall comply with all applicable laws, rules, regulations,
orders, permits, licenses and operating plans of any governmental authority
with respect to the receipt, use, handling, generation, transportation,
storage, treatment, release and/or disposal of hazardous or toxic substances or
wastes in the course of or in connection with the conduct of Tenant's business
on the Property, and shall provide Landlord with copies of any and all permits,
licenses, registrations and other similar documents that authorize Tenant to
conduct any such activities in connection with Tenant's use of the Property.

        (c) Tenant shall indemnify, defend and hold Landlord harmless from and
against any and all claims, losses, damages, liabilities, costs, legal fees and
expenses of any sort arising out of or relating to (i) any failure by Tenant to
comply with any provisions of subparagraph (a) or (b) above, or (ii) any
receipt, use, handling, generation, transportation, storage, treatment, release
and/or disposal of any hazardous or toxic substances or wastes on or about the
Property by Tenant in connection with Tenant's use or occupancy of the Property

                                      16

 
or as a result of any intentional or negligent acts or omissions of Tenant
or of any agent or employee of Tenant.

        (d) Landlord represents and warrants to Tenant that the Building and
Premises are free of asbestos, lead paint and, to the best of Landlord's
knowledge, any other hazardous or toxic substances or wastes. Landlord shall
indemnify, defend and hold Tenant harmless from and against any and all claims,
losses, damages, liabilities, costs, legal fees and expenses of any sort
arising out of or relating to (i) the presence on the Property of any hazardous
or toxic substances or wastes present on the Property as of the Commencement
Date, and/or (ii) any unauthorized release into the environment of hazardous or
toxic substances or wastes to the extent they result from the negligence of or
willful misconduct or omission by landlord or its agents or employees.

        (e) The provisions of this Section 9.5 shall survive the termination of
this Lease.

                          10. INSURANCE AND INDEMNITY
                              -----------------------

        10.1. Insurance.
              ---------

        (a) Tenant shall procure and maintain in full force and effect at all
times during the term of this Lease, at Tenant's cost and expense comprehensive
public liability and property damage insurance to protect against any liability
to the public, or to any invitee of Tenant or Landlord, arising out of or
related to the use of or resulting from any accident occurring in, upon or about
the Premises, with limits of liability of not less than (i) One Million dollars
($1,000,000.00) for injury to or death of one person, (ii) Three Million Dollars
($3,000,000.00) for personal injury or death, per occurrence, and (iii) Five
Hundred Thousand Dollars ($500,000.00) for property damage, or a combined single
limit of public liability and property damage insurance of not less than Five
Million Dollars ($5,000,000.00). Such insurance shall name Landlord and its
general partners and Managing Agent as additional insureds thereunder. The
amount of such insurance shall not be construed to limit any liability or
obligations of Tenant under this Lease.

        (b) Landlord shall procure and maintain in full force and effect at all
times during the term of this Lease, at Landlord's cost and expense (but
reimbursable as an Operating Expense under Section 5.2 hereof), fire and "all
risk" extended coverage property damage insurance for the Building and interior
improvements that are the property of Landlord and for the improvements in the
Common Areas of the Property, on a full replacement cost basis, with rental
loss insurance. Such insurance may include earthquake and/or flood coverage to
the extent Landlord in its discretion elects to carry such coverage, and shall
have such commercially reasonable deductibles and other terms as Landlord in
its discretion determines to be appropriate. Landlord shall have no obligation
to carry property damage insurance for any alterations, additions or
improvements installed by Tenant on or about the Premises.

        10.2. Quality Of Policies and Certificates. All policies of insurance
              ------------------------------------
required to be maintained by Tenant hereunder shall be issued by responsible
insurers and shall be written as primary policies not contributing with and not
in excess of any coverage that Landlord may carry. Tenant shall deliver to
Landlord copies of policies or certificates of insurance showing that said
policies are in effect. The coverage provided by such policies shall include
the clause or endorsement referred to in Section 10.4. If Tenant fails to
acquire, maintain or renew any insurance required to be maintained by it under
this Article 10 or to

                                      17

 
pay the premium therefor, then Landlord, after prior notice to Tenant, at
Landlord's option and in addition to its other remedies, but without obligation
so to do, may procure such insurance, and any sums expended by it to procure
any such insurance shall be repaid upon demand, with interest as provided in
Section 3.2 hereof. Tenant shall obtain written undertakings from each insurer
under policies required to be maintained by it to notify all insureds
thereunder at least thirty (30) days prior to cancellation, amendment or
revision of coverage.

        10.3. Workers' Compensation. Tenant shall maintain in full force and
              ---------------------
effect during the term of this Lease workers' compensation insurance covering
all of Tenant's employees working on the Premises.

        10.4. Waiver of Subrogation. To the extent permitted by law and without
              ---------------------
affecting the coverage provided by insurance required to be maintained
hereunder, Landlord and Tenant each waive any right to recover against the
other for (i) damages for injury to or death of persons, (ii) damage to
property, (iii) damage to the Premises or any part thereof, or (iv) claims
arising by reason of any of the foregoing, but only to the extent that any of
the foregoing damages and claims under subparts (i)-(iv) hereof are covered,
and only to the extent of such coverage, by insurance actually carried or
required to be carried hereunder by either Landlord or Tenant. This provision
is intended to waive fully, and for the benefit of each party, any rights and
claims which might give rise to a right of subrogation in any insurance
carrier. Each party shall procure a clause or endorsement on any policy
required under this Article 10 denying to the insurer rights of subrogation
against the other party to the extent rights have been waived by the insured
prior to the occurrence of injury or loss. Coverage provided by insurance
maintained by Tenant under this Article 10 shall not be limited, reduced or
diminished by virtue of the subrogation waiver herein contained.

        10.5. Increase In Premiums. Tenant shall do all acts and pay all
              --------------------
expenses necessary to insure that the Premises are not used for purposes
prohibited by any applicable fire insurance, and that Tenant's use of the
Premises complies with all requirements necessary to obtain any such insurance.
If Tenant uses or permits the Premises to be used in a manner which increases
the existing rate of any insurance on the Premises carried by Landlord, Tenant
shall pay the amount of the increase in premium caused thereby, and Landlord's
cost of obtaining other replacement insurance policies, including any increase
in premium, within ten (10) days after demand therefor by Landlord.

        10.6. Indemnification.
              ---------------

        (a) Tenant shall indemnify, defend and hold Landlord, its partners,
shareholders, officers, directors, affiliates, agents, employees and
contractors, harmless from any and all liability for injury to or death of any
person, or loss of or damage to the property of any person and all actions,
claims, demands, costs (including, without limitation, reasonable attorneys'
fees), damages or expenses of any kind arising therefrom which may be brought
or made against Landlord or which Landlord may pay or incur by reason of the
use, occupancy and enjoyment of the Premises by Tenant or any invitees,
sublessees, licensees, assignees, employees, agents or contractors of Tenant or
holding under Tenant from any cause whatsoever other than negligence or willful
misconduct or omission by Landlord, its agents, employees or contractors, or
breach by Landlord of its obligations hereunder. Landlord, its partners,
shareholders, officers, directors, affiliates, agents, employees and
contractors shall not be liable for, and Tenant hereby waives all claims
against such persons for, damages to goods, wares and merchandise in or upon
the Premises, or for

                                      18

 
injuries to Tenant, its agents or third persons in or upon the Premises,
from any cause whatsoever other than negligence or willful misconduct or
omission by Landlord, its agents, employees or contractors. Tenant shall give
prompt notice to Landlord of any casualty or accident in, on or about the
Premises.

        (b) Landlord shall indemnify, defend and hold Tenant, its partners,
shareholders, officers, directors, affiliates, agents, employees and
contractors, harmless from any and all liability for injury to or death of any
person or loss of or damage to the property of any person, and all actions,
claims, demands, costs (including, without limitation, reasonable attorneys'
fees), damages or expenses of any kind arising therefrom which may be brought
or made against Tenant or which Tenant may pay or incur, to the extent such
liabilities or other matters arise by reason of any negligence or willful
misconduct or omission by Landlord, its agents, employees or contractors.

        10.7. Blanket Policy. Any policy required to be maintained hereunder may
              --------------
be maintained under a so-called "blanket-policy" insuring other parties and
other locations so long as the amount of insurance required to be provided
hereunder is not thereby diminished.

                          11. SUBLEASE AND ASSIGNMENT
                              -----------------------

        11.1. Assignment And Sublease Of Premises. Tenant shall not have the
              -----------------------------------
right or power to assign its interest in this Lease, or make any sublease, nor
shall any interest of Tenant under this Lease be assignable involuntarily or by
operation of law, without on each occasion obtaining the prior written consent
of Landlord, which consent shall not be unreasonably withheld. Any purported
sublease or assignment of Tenant's interest in this Lease requiring but not
having received Landlord's consent thereto shall be void. Without limiting the
generality of the foregoing, Landlord may withhold consent to any proposed
subletting or assignment solely on the ground that the use by the proposed
subtenant or assignee is reasonably likely to be incompatible with Landlord's
use of the balance of the Building or Property. Any dissolution, consolidation,
merger or other reorganization of Tenant, or any sale or transfer of the stock
of or other interest in Tenant, or any series of one or more of such events,
involving in the aggregate a change of fifty percent (50%) or more in the
beneficial ownership of Tenant or its assets shall be deemed to be an assignment
hereunder and shall be void without the prior written consent of Landlord as
required above. Notwithstanding the foregoing or anything in this Section 11.1
to the contrary, Tenant may assign this Lease or sublet the Premises, in whole
or in part, without Landlord's consent (but with prior or concurrent written
notice to Landlord), to (a) any entity controlled by, controlling or under
common control with Tenant, including any entity resulting from a
reincorporation of Tenant in another state, or (b) any entity or person which
acquires by merger, consolidation or otherwise substantially all of the assets
of Tenant, provided that any such assignee assumes in full, in writing and for
the benefit of Landlord, the obligations of Tenant under this Lease and that the
net worth of the assignee is equal to or greater than that of Tenant immediately
prior to the applicable transfer. In addition, Landlord's consent shall not be
required for a sale or transfer of the capital stock of Tenant (x) if such sale
or transfer occurs in connection with a bona fide financing or capitalization
for the benefit of Tenant and does not constitute part of a dissolution,
consolidation, merger or reorganization of Tenant as specifically described
above, or (y) during any period in which Tenant has a class of publicly traded
stock.

                                      19

 
        11.2 Rights Of Landlord. Consent by Landlord to one or more assignments
             ------------------
of this Lease or to one or more sublettings of the Premises, or collection of
rent by Landlord from any assignee or sublessee, shall not operate to exhaust
Landlord's rights under this Article 11, nor constitute consent to any
subsequent assignment or subletting. No assignment of Tenant's interest in this
Lease and no sublease shall relieve Tenant of its obligations hereunder,
notwithstanding any waiver or extension of time granted by Landlord to any
assignee or sublessee, or the failure of Landlord to assert its rights against
any assignee or sublessee, and regardless of whether Landlord's consent thereto
is given or required to be given hereunder. In the event of a default by any
assignee, sublessee or other successor of Tenant in the performance of any of
the terms or obligations of Tenant under this Lease, Landlord may proceed
directly against Tenant without the necessity of exhausting remedies against any
such assignee, sublessee or other successor. In addition, Tenant immediately and
irrevocably assigns to Landlord, as security for Tenant's obligations under this
Lease, all rent from any subletting of all or a part of the Premises as
permitted under this Lease, and Landlord, as Tenant's assignee and as attorney-
in-fact for Tenant, or any receiver for Tenant appointed on Landlord's
application, may collect such rent and apply it toward Tenant's obligations
under this Lease; except that, until the occurrence of an act of default by
Tenant, Tenant shall have the right to collect such rent.


                    12. RIGHT OF ENTRY AND QUIET ENJOYMENT
                        ----------------------------------

        12.1. Right Of Entry. Landlord and its authorized representatives shall
              --------------
have the right to enter the Premises at any time during the term of this Lease
during normal business hours and upon not less than twenty-four (24) hours
prior notice, except in the case of emergency, for the purpose of inspecting
and determining the condition of the Premises or for any other proper purpose
including, without limitation, to make repairs, replacements or improvements
which Landlord may deem necessary, to show the Premises to prospective
purchasers, to show the premises to prospective tenants, and to post notices of
nonresponsibility. Landlord shall not be liable for inconvenience, annoyance,
disturbance, loss of business, quiet enjoyment or other damage or loss to
Tenant by reason of making any repairs or performing any work upon the Premises
and the obligations of Tenant under this Lease shall not thereby be affected in
any manner whatsoever, provided, however, Landlord shall use reasonable efforts
to minimize the inconvenience to Tenant's normal business operations caused
thereby.

        12.2. Quiet Enjoyment. Landlord covenants that Tenant, upon paying the
              ---------------
rent and performing its obligations hereunder and subject to all the terms and
conditions of this Lease, shall peacefully and quietly have, hold and enjoy the
Premises throughout the term of this Lease, or until this Lease is terminated as
provided by this Lease.


                            13. CASUALTY AND TAKING
                                -------------------

        13.1. Termination Or Reconstruction. If during the term of this Lease
              -----------------------------
the Premises or Building, or any substantial part of either, (i) is damaged
materially by fire or other casualty or by action of public or other authority
in consequence thereof, (ii) is taken by eminent domain or by reason of any
public improvement or condemnation proceeding, or in any manner by exercise of
the right of eminent domain (including any transfer in avoidance of an exercise
of the power of eminent domain), or (iii) receives irreparable damage by reason
of anything lawfully done under color of public or other authority, this Lease
shall terminate

                                      20

 
as to the entire Premises at either Landlord's or Tenant's election, by
written notice given to the other party within sixty (60) days after the damage
or taking has occurred, subject to the following limitations (and, to the
extent applicable, the limitations set forth in Section 13.2):

        (a) in the case of damage or destruction prior to the final year of the
term of this Lease, (i) Tenant's termination right shall be exercisable only if
the time reasonably estimated by Landlord's architect or contractor to be
required for the repair or restoration of the Building to the extent necessary
to permit Tenant to resume substantially all of its normal business activities
therein (the "Estimated Rebuilding Period"), which time estimate shall be given
by Landlord to Tenant in writing within forty-five (45) days after the date of
the damage or destruction, exceeds one hundred eighty (180) days from the date
of the damage or destruction, and (ii) Landlord's termination right shall be
exercisable only if either the Estimated Rebuilding Period exceeds one hundred
twenty (120) days from the date of the damage or destruction or the reasonably
estimated cost of such repair or restoration is not covered by insurance
proceeds reasonably available for such repair or restoration under the
insurance required to be maintained by Landlord under Section 10.1 (b) hereof;

        (b) in the case of damage or destruction during the final year of the
term of this Lease, (i) Tenant's termination right shall be exercisable only if
the Estimated Rebuilding Period, which estimate shall be given by Landlord to
Tenant in writing within thirty (30) days after the date of the damage or
destruction, exceeds ninety (90) days from the date of the damage or
destruction, and (ii) Landlord's termination right shall be exercisable only if
either the Estimated Rebuilding Period exceeds ninety (90) days from the date of
the damage or destruction or the reasonably estimated cost of such repair or
restoration is not covered by insurance proceeds reasonably available for such
repair or restoration under the insurance required to be maintained by Landlord
under Section 10.1 (b) hereof; and

        (c) in the case of damage or destruction during the final year of the
initial term of this Lease, if Tenant's extension option under Section 2.7
hereof has not been exercised and has not yet expired under the terms of
Section 2.7 hereof, and if Tenant thereafter exercises such extension option
within thirty (30) days after the date of such damage or destruction, then the
limitations applicable to the respective termination rights of the parties
shall be those set forth in Section 13.1(a) rather than Section 13.1(b).

If neither party elects to terminate this Lease pursuant to the foregoing
termination rights (if any) and/or Section 13.2 (if applicable), then Landlord
shall promptly and diligently repair any such damage and restore the Premises
(to the extent of Landlord's work therein under Section 2.4 and Exhibit C) and
                                                                ---------
the Building as nearly as reasonably possible to the condition existing before
the damage or taking.

        13.2. Tenant's Rights. If any portion of the Premises is so taken by
              ---------------
condemnation, Tenant may elect to terminate this Lease if the portion of the
Premises taken is of such extent and nature as substantially to handicap,
impede or permanently impair Tenant's use of the balance of the Premises.
Tenant must exercise its right to terminate by giving notice to Landlord within
thirty (30) days after the nature and extent of the taking have been finally
determined. If Tenant elects to terminate this Lease, Tenant shall also notify
Landlord of the date of termination, which date shall not be earlier than
thirty (30) days nor later than ninety (90) days after Tenant has notified
Landlord of its election to terminate, except that this Lease shall terminate
on the date of taking

                                      21

 
if the date of taking falls on any date before the date of termination 
designated by Tenant.

        13.3. Lease To Remain In Effect. It neither Landlord nor Tenant
              -------------------------
terminates this Lease as hereinabove provided, this Lease shall continue in full
force and effect, except that minimum monthly rental and Tenant's Operating Cost
Share shall xxxxx to the extent Tenant's use of the Premises is impaired during
the period from the date of the casualty or taking until the repair or
restoration of the Premises is completed. Each party waives the provisions of
Code of Civil Procedure Section 1265.130, allowing either party to petition the
Superior Court to terminate this Lease in the event of a partial condemnation of
the Premises.

        13.4. Reservation Of Compensation. Landlord reserves, and Tenant waives
              ---------------------------
and assigns to Landlord, all rights to any award or compensation for damage to
the Premises, Building, Property and the leasehold estate created hereby,
accruing by reason of any taking in any public improvement, condemnation or
eminent domain proceeding or in any other manner by exercise of the right of
eminent domain or of anything lawfully done by public authority, except that
Tenant shall be entitled to any and all compensation or damages paid for or on
account of Tenant's moving expenses, trade fixtures, equipment and any leasehold
improvements in the Premises, the cost of which was borne by Tenant, but only to
the extent of the then remaining unamortized value of such improvements computed
on a straight-line basis over the term of this Lease. Tenant covenants to
deliver such further assignments of the foregoing as Landlord may from time to
time request.

        13.5. Restoration of Fixtures. If Landlord repairs or causes repair of
              -----------------------
the Premises after such damage or taking, Tenant at its sole expense shall
repair and replace promptly all fixtures, equipment and other property of Tenant
located at, in or upon the Premises and all additions, alterations and
improvements and all other items installed or paid for by Tenant under this
Lease that were damaged or taken, so as to restore the same to a condition
substantially equal to that which existed immediately prior to the damage or
taking. Tenant shall have the right to make modifications to the Premises,
fixtures and improvements, subject to the prior written approval of Landlord. In
its review of Tenant's plans and specifications, Landlord may take into
consideration the effect of the proposed modifications on the exterior
appearance, the structural integrity and the mechanical and other operating
systems of the Building.

                                  14. DEFAULT
                                      -------

        14.1. Events Of Default. The occurrence of any of the following shall
              -----------------
constitute an event of default on the part of Tenant:

        (a) Abandonment. Abandonment of the Premises. For purposes of this
            -----------
Section 14.1 (a), "abandonment" shall be defined as the absence of Tenant from
the Premises for fifteen (15) consecutive days or more while there exists an
event of default on the part of Tenant under any other provision of this Section
14.1, which default has not been cured on or before the expiration of such 15
day period;

        (b) Nonpayment. Failure to pay, when due, any amount payable to Landlord
            ----------
hereunder, such failure continuing for a period of five (5) days after written
notice of such failure;

                                      22


 
        (c) Other Obligations. Failure to perform any obligation, agreement or
            -----------------
covenant under this Lease other than those matters specified in subsection (b)
hereof, such failure continuing for fifteen (15) days after written notice of
such failure. If it is not possible to cure such default within fifteen (15)
days, Tenant shall commence cure within said fifteen (15) day period and shall
proceed diligently to complete cure;

        (d) General Assignment. A general assignment by Tenant for the benefit
            ------------------
ot creditors;

        (e) Bankruptcy. The filing of any voluntary petition in bankruptcy by
            ----------
Tenant, or the filing of an involuntary petition by Tenant's creditors, which
involuntary petition remains undischarged for a period of thirty (30) days. In
the event that under applicable law the trustee in bankruptcy or Tenant has the
right to affirm this Lease and continue to perform the obligations of Tenant
hereunder, such trustee or Tenant shall, in such time period as may be
permitted by the bankruptcy court having jurisdiction, cure all defaults of
Tenant hereunder outstanding as of the date of the affirmance of this Lease and
provide to Landlord such adequate assurances as may be necessary to ensure
Landlord of the continued performance of Tenant's obligations under this Lease.
Specifically, but without limiting the generality of the foregoing, such
adequate assurances must include assurances that the Premises continue to be
operated only for the use permitted hereunder. The provisions hereof are to
assure that the basic understandings between Landlord and Tenant with respect
to Tenant's use of the Premises and the benefits to Landlord therefrom are
preserved, consistent with the purpose and intent of applicable bankruptcy laws;

        (f) Receivership. The employment of a receiver appointed by court order
            ------------
to take possession of substantially all of Tenant's assets or the Premises, if
such receivership remains undissolved for a period of thirty (30) days;

        (g) Attachment. The attachment, execution or other judicial seizure of
            ----------
all or substantially all of Tenant's assets or the Premises, if such attachment
or other seizure remains undismissed or undischarged for a period of thirty (30)
days after the levy thereof; or

        (h) Insolvency. The admission by Tenant in writing of its inability to
            ----------
pay its debts as they become due, the filing by Tenant of a petition seeking any
reorganization or arrangement, composition, readjustment, liquidation,
dissolution or similar relief under any present or future statute, law or
regulation, the filing by Tenant of an answer admitting or failing timely to
contest a material allegation of a petition filed against Tenant in any such
proceeding or, if within thirty (30) days after the commencement of any
proceeding against Tenant seeking any reorganization or arrangement,
composition, readjustment, liquidation, dissolution or similar relief under any
present or future statute, law or regulation, such proceeding shall not have
been dismissed.

       14.2. Remedies Upon Tenant's Default.
                           ------------------------------
        (a) Upon the occurrence of any event of default described in Section
14.1 hereof, Landlord, in addition to and without prejudice to any other rights
or remedies it may have, shall have the immediate right to re-enter the Premises
or any part thereof and repossess the same, expelling and removing therefrom all
persons and property (which property may be stored in a public warehouse or
elsewhere at the cost and risk of and for the account of Tenant), using such
force as may be necessary to do so (as to which Tenant hereby waives any claim
for loss or damage that may thereby occur). In addition to or in

                                      23


 
lieu of such re-entry, and without prejudice to any other rights or
remedies it may have, Landlord shall have the right either (i) to terminate
this Lease and recover from Tenant all damages incurred by Landlord as a result
of Tenant's default, as hereinafter provided, or (ii) to continue this Lease in
effect and recover rent and other charges and amounts as they become due.

        (b) Even if Tenant has breached this Lease or abandoned the Premises,
this Lease shall continue in effect for so long as Landlord does not terminate
Tenant's right to possession under subsection (a) hereof and Landlord may
enforce all of its rights and remedies under this Lease, including the right to
recover rent as it becomes due, and Landlord, without terminating this Lease,
may exercise all of the rights and remedies of a lessor under California Civil
Code Section 1951.4 (lessor may continue lease in effect after lessee's breach
and abandonment and recover rent as it becomes due, it lessee has right to
sublet or assign, subject only to reasonable limitations), or any successor Code
section. Acts of maintenance, preservation or efforts to relet the Premises or
the appointment of a receiver upon application of Landlord to protect Landlord's
interests under this Lease shall not constitute a termination of Tenant's right
to possession.

        (c) If Landlord terminates this Lease pursuant to this Section 14.2,
Landlord shall have all of the rights and remedies of a landlord provided by
Section 1951.2 of the Civil Code of the State of California, or any successor
Code section.

        14.3. Remedies Cumulative. All rights, privileges and elections or
              -------------------
remedies of Landlord contained in this Article 14 are cumulative and not
alternative to the extent permitted by law and except as otherwise provided
herein.

                    15. SUBORDINATION, ATTORNMENT AND SALE
                        ----------------------------------

        15.1. Subordination To Mortgage. This Lease, and any sublease entered
              -------------------------
into by Tenant under the provisions of this Lease, shall be subject and
subordinate to any ground lease, mortgage, deed of trust, sale/leaseback
transaction or any other hypothecation for security now or hereafter placed upon
the Building, the Property, or both, and the rights of any assignee of Landlord
or mortgagee, trustee, beneficiary, landlord or leaseback lessor under any of
the foregoing, and to any and all advances made on the security thereof and to
all renewals, modifications, consolidations, replacements and extensions
thereof; provided however, that such subordination in the case of any future
         --------
ground lease, mortgage, deed of trust, sale/leaseback transaction or any other
hypothecation for security placed upon the Building, the Property, or both shall
be conditioned on Tenant's receipt from the ground lessor, mortgagee, trustee,
beneficiary or leaseback lessor of a nondisturbance agreement in a form
reasonably acceptable to Tenant, confirming that so long as Tenant is not in
default hereunder, Tenant's right hereunder shall not be disturbed by such
person or entity following any foreclosure or other acquisition of the Property;
and provided further, that Tenant's obligations under this Lease shall be
    ----------------
conditioned on Tenant's receipt, within thirty (30) days after mutual execution
of this Lease, from SDK Incorporated and from any other ground lessor,
mortgagee, trustee, beneficiary or leaseback lessor currently owning or holding
a security interest in the Property, of a nondisturbance agreement in a form
reasonably acceptable to Tenant, confirming that so long as Tenant is not in
default hereunder, Tenant's rights hereunder shall not be disturbed by such
person or entity following any foreclosure or other acquisition of the Property.
If Landlord fails to deliver such signed nondisturbance agreement to Tenant
within

                                      24


 
such 30 day period, then Tenant may terminate this Lease by written notice
to Landlord at any time prior to Landlord's delivery of such signed
nondisturbance agreement, in which event Landlord shall refund any security
deposit and other amounts prepaid by Tenant and neither party shall have any
further liability under this Lease. If any mortgagee, trustee, beneficiary,
ground lessor, sale/leaseback lessor or assignee elects to have this Lease be
an encumbrance upon the Property prior to the lien of its mortgage, deed of
trust, ground lease or leaseback lease or other security arrangement and gives
notice thereof to Tenant, this Lease shall be deemed prior thereto, whether
this Lease is dated prior or subsequent to the date thereof or the date of
recording thereof. Tenant, and any sublessee, shall execute such documents as
may reasonably be requested by any mortgagee, trustee, beneficiary, ground
lessor, sale/leaseback lessor or assignee to evidence the subordination herein
set forth or to make this Lease prior to the lien of any mortgage, deed of
trust, ground lease, leaseback lease or other security arrangement, as the case
may be. Upon any default by Landlord in the performance of its obligations
under any mortgage, deed of trust, ground lease, leaseback lease or assignment,
Tenant (and any sublessee) shall attorn to the mortgagee, trustee, beneficiary,
ground lessor, leaseback lessor or assignee thereunder upon demand and shall
execute and deliver any instrument or instruments confirming the attornment
herein provided for.

        15.2. Sale of Landlord's Interest. Upon Landlord's entire interest in
              ---------------------------
the Building and Property, Landlord shall be relieved of its obligations
hereunder with respect to liabilities accruing from and after the date of such
sale, transfer or assignment; provided, however, that such relief from
liabilities (i) shall be effective only if and to the extent that the transferee
expressly assumes in writing, for the benefit of Tenant, Landlord's obligations
under this Lease, (ii) shall not apply to Landlord's environmental
indemnification under Section 9.5 (d) hereof unless the transferee has,
immediately after the transfer, a net worth equal to or greater than that of
Landlord immediately prior to the transfer, and (iii) shall not in any event
apply to Landlord's obligations with respect to the initial improvement of the
Premises under Section 2.4 and Exhibit C.
                               ---------
        15.3. Estoppel Certificates. Either party shall at any time and from
              ---------------------
time to time, within ten (10) days after written request by the other party,
execute, acknowledge and deliver to the requesting party a certificate in
writing, stating: (i) that this Lease is unmodified and in full force and
effect, or if there have been any modifications, that this Lease is in full
force and effect as modified and stating the date and the nature of each
modification; (ii) the date to which rental and all other sums payable hereunder
have been paid; (iii) that the requesting party is not in default in the
performance of any of its obligations under this Lease, that the responding
party has given no notice of default to the requesting party and that no event
has occurred which, but for the expiration of the applicable time period, would
constitute an event of default hereunder (or, if any such defaults or events
exist, specifying the same); and (iv) such other matters as may reasonably be
requested by the requesting party or any institutional lender, mortgagee,
trustee, beneficiary, ground lessor, sale/leaseback lessor or prospective
purchaser of the Property. Any such certificate provided under this Section 15.3
may be relied upon by any lender, mortgagee, trustee, beneficiary, assignee or
successor in interest to the requesting party, by any prospective purchaser, by
any purchaser on foreclosure or sale, or upon any grant of a deed in lieu of
foreclosure of any mortgage or deed of trust on the Property or Premises, or by
any other third party. Failure to execute and return within the required time
any estoppel certificate requested hereunder shall be deemed to be an admission
of the truth of the matters set forth in the form of certificate submitted to
Tenant for execution.

                                      25


 
        15.4. Subordination To CC&R'S. This Lease, and any permitted sublease
              -----------------------
entered into by Tenant under the provisions of this Lease, shall be subject and
subordinate (a) to any declarations of covenants, conditions and restrictions
recorded by Landlord with respect to the Property from time to time, provided
that the terms of such declarations are reasonable and do not discriminate
against Tenant relative to other tenants occupying portions of the Property,
and (b) to the Declaration of Covenants, Conditions and Restrictions for
Hacienda Business Park (No. 2), as amended from time to time (the "Master
Declaration"), the provisions of which Master Declaration are an integral part
of this Lease. Tenant expressly agrees to comply in all applicable respects
with the provisions of the Master Declaration, as provided under Section 12.3
thereof. Tenant agrees to execute, upon request by Landlord, any documents
reasonably required from time to time to evidence the subordination provided in
this Section 15.4.

                                 16. SECURITY
                                     --------
        16.1. Deposit. Concurrently with Tenant's execution of this Lease,
              -------
Tenant shall deposit with Landlord the sum of Twenty Nine Thousand One Hundred
Twenty Four Dollars and 90/100 ($29,124.90), which sum (the "Security Deposit")
shall be held by Landlord as security for the faithful performance of all of the
terms, covenants, and conditions of this Lease to be kept and performed by
Tenant during the term hereof. If Tenant defaults with respect to any provision
of this Lease, including, without limitation, the provisions relating to the
payment of rental and other sums due hereunder, Landlord shall have the right,
but shall not be required, to use, apply or retain all or or any part of the
Security Deposit for the payment of rental or any other amount which Landlord
may spend or may become obligated to spend by reason of Tenant's default or to
compensate Landlord for any other loss or damage which Landlord may suffer by
reason of Tenant's default. If any portion of the Security Deposit is so used or
applied, Tenant shall, within ten (10) days after written demand therefor,
deposit cash with Landlord in an sufficient amount to restore the Security
Deposit to its original amount and Tenant's failure to do so shall be a material
breach of this Lease. Landlord shall not be required to keep any deposit under
this Section separate from Landlord's general funds, and Tenant shall not be
entitled to interest thereon. Subject to Landlord's right to use, apply or
retain the Security Deposit as described above and subject to applicable law,
the Security Deposit, or any balance thereof, shall be returned to Tenant or, at
Landlord's option, to the last assignee of Tenant's interest hereunder, at the
expiration or earlier termination of the term of this Lease and after Tenant has
vacated the Premises. In the event of termination of Landlord's interest in this
Lease, Landlord shall transfer all deposits then held by Landlord under this
Section to Landlord's successor in interest, whereupon Tenant agrees to release
Landlord from all liability for the return of such deposit or the accounting
thereof.

                               17. MISCELLANEOUS
                                   -------------
        17.1. Notices. All notices, consents, waivers and other communications
              -------
which this Lease requires or permits either party to give to the other shall be
in writing and shall be deemed given when delivered personally (including
delivery by private courier or express delivery service) or four (4) days after
deposit in the United States mail, registered or certified mail, postage
prepaid, addressed to the parties at their respective addresses as follows:

                                      26


 
        To Tenant:      (until Commencement Date)

                        Documentum, Inc.
                        0000 Xxxxxxxxx Xxxxx
                        Xxxxxxxxxx, XX 00000
                        Attn: Director of Legal Affairs

                        (after Commencement Date)

                        Documentum, Inc.
                        0000 Xxxxxxxxxx Xxxxx, Xxxxx    (xx be determined)
                        Xxxxxxxxxx, XX 00000
                        Attn: Director of Legal Affairs

        with copy to:   Xxxxxx Godward, LLP
                        0000 Xxxx Xxxx Xxxx, Xxxxxxxx 0, Xxxxx 000
                        Xxxxx Xxxx, XX 00000
                        Attn: Xxxx Xxxxxxx

        To Landlord:    BRITANNIA HACIENDA IV LIMITED PARTNERSHIP
                        c/o Britannia Stoneridge, LLC
                        0000 Xxxxxxxx Xxxxxx, Xxxxx 000
                        Xxxx Xxxxx Xxxxxxxx
                        Xxxxxxx, XX 00000
                        Attn: X.X. Xxxxxxx

        with copy to:   Xxxxxx, Xxxxx and Xxxx, LLP
                        Embarcadero Center West
                        000 Xxxxxxx Xxxxxx, 00xx Xxxxx
                        Xxx Xxxxxxxxx, XX 00000
                        Attn: Xxxxxx X. Xxxxxx, Xx.

or to such other address as may be contained in a notice at least fifteen
(15) days prior to the address change from either party to the other given
pursuant to this Section. Rental payments and other sums required by this Lease
to be paid by Tenant shall be delivered to Landlord at Landlord's address
provided in this Section, or to such other address as Landlord may from time to
time specify in writing to Tenant, and shall be deemed to be paid only upon
actual receipt.

        17.2. Successors And Assigns. The obligations of this Lease shall run
              ----------------------
with the land, and this Lease shall be binding upon and inure to the benefit of
the parties hereto and their respective successors and assigns, except that the
original Landlord named herein and each successive Landlord under this Lease
shall be liable only for obligations accruing during the period of its ownership
of the Property, said liability terminating upon termination of such ownership
and passing to the successor lessor.

        17.3. No Waiver. The failure of Landlord to seek redress for violation,
              ---------
or to insist upon the strict performance, of any covenant or condition of this
Lease shall not be deemed a waiver of such violation, or prevent a subsequent
act which would originally have constituted a violation from having all the
force and effect of an original violation.

                                      27

 
        17.4. Severability. If any provision of this Lease or the application
              ------------
thereof is held to be invalid or unenforceable, the remainder of this Lease or
the application of such provision to persons or circumstances other than those
as to which it is invalid or unenforceable shall not be affected thereby, and
each of the provisions of this Lease shall be valid and enforceable, unless
enforcement of this Lease as so invalidated would be unreasonable or grossly
inequitable under all the circumstances or would materially frustrate the
purposes of this Lease.

        17.5. Litigation Between Parties. In the event of any litigation
              --------------------------
between the parties hereto growing out of this Lease, the prevailing party shall
be reimbursed for all reasonable costs, including, but not limited to,
reasonable accountants' fees and attorneys' fees. "Prevailing Party" within the
meaning of this Section shall include, without limitation, a party who dismisses
an action for recovery hereunder in exchange for payment of the sums allegedly
due, performance of covenants allegedly breached or consideration substantially
equal to the relief sought in the action.

        17.6. Surrender. A voluntary or other surrender of this Lease by Tenant,
              ---------
or a mutual termination thereof between Landlord and Tenant, shall not result in
a merger but shall, at the option of Landlord, operate either as an assignment
to Landlord of any and all existing subleases and subtenancies, or a termination
of all or any existing subleases and subtenancies. This provision shall be
contained in any and all assignments or subleases made pursuant to this Lease.

        17.7. Construction. The provisions of this Lease shall be construed as a
              ------------
whole according to their common meaning and not strictly for or against Landlord
or Tenant. The captions preceding the text of each Section and subsection hereof
are included only for convenience of reference and shall be disregarded in the
construction or interpretation of this Lease.

        17.8. Entire Agreement. This written Lease, together with the exhibits
              ----------------
hereto, contains all the representations and the entire understandings between
the parties hereto with respect to the subject matter hereof. Any prior
correspondence, memoranda or agreements are replaced in total by this Lease and
the exhibits hereto. This Lease may be modified only by an agreement in writing
signed by each of the parties.

        17.9. Governing Law. This Lease and all exhibits hereto shall be
              -------------
construed and interpreted in accordance with and be governed by all the
provisions of the laws of the State of California.

        17.10. No Partnership. Nothing contained in this Lease shall be
               --------------
construed as creating any type or manner of partnership, joint venture or Joint
enterprise with or between Landlord and Tenant.

        17.11. Financial Information. From time to time Tenant shall promptly
               ---------------------
provide directly to prospective lenders and purchasers of the Premises
designated by Landlord such financial information pertaining to the financial
status of Tenant as Landlord may reasonably request; provided, Tenant shall be
permitted to provide such financial information in a manner which Tenant deems
reasonably necessary to protect the confidentiality of such information. In
addition, from time to time, Tenant shall provide Landlord with such financial
information pertaining to the financial status of Tenant as Landlord may
reasonably request. Landlord agrees that all financial information supplied to
Landlord by Tenant shall be treated as confidential material, and shall not be
disseminated to any party or entity (including any entity affiliated with
Landlord)

                                      28


 
without Tenant's prior written consent. For purposes of this Section,
without limiting the generality of the obligations provided herein, it shall be
deemed reasonable for Landlord to request copies of Tenant's most recent
audited annual financial statements, or, if audited statements have not been
prepared, unaudited financial statements for Tenant's most recent fiscal year,
accompanied by a certificate of Tenant's chief finandal officer that such
financial statements fairly present Tenant's financial condition as of the
date(s) indicated.

        Landlord and Tenant recognize the need of Tenant to maintain the
confidentiality of information regarding its financial status and the need of
Landlord to be informed of, and to provide to prospective lenders and
purchasers of the Premises, financial information pertaining to Tenant's
financial status. Landlord and Tenant agree to cooperate with each other in
achieving these needs within the context of the obligations set forth in this
Section.

        17.12. Costs. If Tenant requests the consent of Landlord under any
               -----
provisions of this Lease for any act that Tenant proposes to do hereunder,
including, without limitation, assignment or subletting of the Premises, Tenant
shall, as a condition to doing any such act and the receipt of such consent,
reimburse Landlord promptly for any and all reasonable costs and expenses
incurred by Landlord in connection therewith, including, without limitation,
reasonable attomeys' fees.

        17.13. Time. Time is of the essence of this Lease, and of every term and
               ----
condition hereof.

        17.14. Rules And Regulations. Tenant shall observe and obey such rules
               ---------------------
and regulations as Landlord may promulgate from time to time for the safety,
care, cleanliness, order and use of the Premises and the Building.

        17.15. Brokers. Landlord agrees to pay a brokerage commission to Cornish
               -------
& Xxxxx and Colliers and Xxxxxxx in connection with the consummation of this
Lease in accordance with a separate agreement. Tenant represents and warrants
that no other broker participated in the consummation of this Lease and agrees
to indemnify, defend and hold Landlord harmless against any liability, cost or
expense, including, without limitation, reasonable attorneys' fees, arising out
of any claims for brokerage commissions or other similar compensation in
connection with any conversations, prior negotiations or other dealings by
Tenant with any other broker.

        17.16. Memorandum Of Lease. At any time during the term of this Lease,
               -------------------
either party, at its sole expense, shall be entitled to record a memorandum of
this Lease and, if either party so elects, both parties agree to cooperate in
the preparation, execution, acknowledgment and recordation of such document in
reasonable form.

        17.17. Corporate Authority. The person signing this Lease on behalf of
               -------------------
Tenant warrants that he or she is fully authorized to do so and, by so doing to
bind Tenant. As evidence of such authority, Tenant shall deliver to Landlord,
upon or prior to execution of this Lease, a certified copy of a resolution of
Tenant's board of directors authorizing the execution of this Lease and naming
the officer that is authorized to execute this Lease on behalf of Tenant.

        17.18. Landlord Defaults. If Landlord fails to perform any obligation,
               -----------------
agreement or covenant under this Lease which relates specifically to the
Premises and does not materially affect other tenants of the Property (such as,
by way of example and not limitation, Landlord's obligation to maintain the
roof, exterior walls and other structural portions of the Building to the
extent such

                                      29


 
portions are part of or relate directly to the Premises), and If such failure
continues for fifteen (15) days after written notice of such failure is given by
Tenant to Landlord or, if such default is curable in nature but it is not
reasonably possible to cure such default within fifteen (15) days, Landlord
fails to commence cure within such fifteen (15) day period or thereafter fails
to proceed diligently to complete cure, then Tenant shall have the right to
perform such obligation or cure such default of Landlord, and Landlord shall
reimburse Tenant for the reasonable cost thereof, together with interest at the
rate specified in the first sentence of Section 3.2 hereof from the date of
payment by Tenant to the date of reimbursement by Landlord, within fifteen (15)
days after written notice from Tenant of the completion and cost of such cure,
accompanied by copies of invoices or other supporting documentation. Under no
circumstances, however, shall Tenant have any right to offset the cost of any
such cure against rent or other charges failing due from time to time under this
Lease.

        IN WITNESS WHEREOF, the parties hereto have executed this Lease as of
the day and year first set forth above.

             "Landlord"                       "Tenant"
        BRITANNIA HACIENDA IV            DOCUMENTUM, INC.
        LIMITED PARTNERSHIP,             a Delaware corporation
        a Delaware Limited Partnership

        By: BRITANNIA STONERIDGE,        By:
            LLC, General Partner,        Its:

        By:
            _________________ 
              X. X.  Xxxxxxx
                 Manager

                                      30


 
                                   EXHIBITS

EXHIBIT A   Location of Premises
EXHIBIT B   Real Property Description
EXHIBIT C   Construction
EXHIBIT D   Acknowledgement of Lease Commencement


                             LOCATION OF PREMISES
                             --------------------

                        Map of Premises. (Not Included)


                                   Exhibit A
                                   ---------

                           REAL PROPERTY DESCRIPTION
                           -------------------------

Parcel One (on which Building is located):
----------

Improved real property located in the City of Pleasanton, County of Alameda,
State of California, more particularly described as follows:

Parcel B of Parcel Map No. 6874, Filed September 20, 1995, In Book 221 of
Parcel Maps, at Pages 25 - 26, Alameda County Records.

Subject to easements, restrictions and other matters of record affecting
title.

Parcel Two (balance of Center, on which adjacent building is located):
----------

Improved real property located in the City of Pleasanton, County of
Alameda, State of California, more particularly described as follows:

Parcel A of Parcel Map No. 6874, filed September 20, 1995 in Book 221 of
Parcel Maps at Pages 25-26, Alameda County Records.

Subject to easements, restrictions and other matters of record affecting 
title.

                                   EXHIBIT B
                                   ---------

                                 CONSTRUCTION
                                 -------------
        Landlord, at its sole cost and expense (subject to the rental adjustment
provisions hereafter set forth), using architects and contractors selected by
Landlord in its sole discretion, shall undertake and diligently complete,
subject to delays for causes beyond its reasonable control (excluding financial
inability), interior tenant improvements in accordance with the Approved Plans
and Specifications as hereinafter defined.

        The plans and specifications that will be necessary for construction of
the Interior improvements shall be prepared by Landlord and its architect on the
basis of a space plan and preliminary specifications to be provided by Tenant,
and shall be subject to mutual approval by Landlord and Tenant, such approval
not to be unreasonably withheld or delayed (whereupon such plans and
specifications shall become the "Approved Plans and Specifications"). Detailed
working drawings shall then be prepared by Landlord's architect on the basis of
the Approved Plans and Specifications, with any material changes from the
Approved Plans and Specifications to be subject to mutual approval by Landlord
and Tenant, such approval not to be unreasonably withheld or delayed; provided.
however, that any changes required from time to time in the Approved Plans and
Specifications, in the working drawings and/or in the final plans and
specifications as a result of applicable law or governmental requirements, or at
the insistence of any other third party whose approval may be required with
respect to such improvements, or as a result of unanticipated conditions
encountered in the course of construction, may be implemented by Landlord after
prior written notice to Tenant, but shall not require Tenant's approval or
consent (although Landlord agrees to give reasonable consideration to Tenant's
views regarding functional characteristics of any such required changes).

        Landlord's work shall be performed in a good and workmanlike manner and
shall conform to the Approved Plans and Specifications (as modified from time
to time), all applicable governmental codes, laws and regulations in force at
the time such work is completed (including but not limited to the Americans
with Disabilities Act) and otherwise in accordance with Section 2.4 of the
Lease. Landlord shall obtain all permits, licenses and approvals required in
connection with the construction of such improvements. Landlord shall use its
best reasonable efforts to complete such work prior to the Commencement Date,
subject to the effects of any delays caused by or attributable to Tenant or any
other circumstances beyond Landlord's reasonable control (excluding financial
inability). Landlord and Tenant shall use their respective best reasonable
efforts to develop, review and approve (to the extent required under this
Exhibit C), as promptly as reasonably possible, all drawings, plans and/or
specifications necessary to create and implement the Approved Plans and
Specifications.

        The cost of construction of Landlord's work under Section 2.4 and this
Exhibit C shall generally be borne by Landlord at its sole cost and expense, up
to a maximum expenditure by Landlord of Twenty-Five Dollars ($25.00) per square
foot as contemplated in Section 3.1 (c) of the Lease. To the extent such cost
of construction exceeds $25.00 per square foot, the excess shall result in a
rental adjustment in accordance with Section 3.1 (c) of the Lease.
Notwithstanding such rental adjustment provisions, Landlord is not required

under any circumstances to spend more than Thirty Dollars (30.00) per
square foot for its work under Section 2.4 and this Exhibit C, and Landlord
shall be entitled to take such limitation into account in determining whether
to approve any features proposed by Tenant as part of the process of
developing, modifying (if necessary) and implementing the Approved Plans and
Specifications.

                                      31

 
                                   EXHIBIT C
                                   ---------

                   ACKNOWLEDGEMENT OF LEASE COMMENCEMENT
                   -------------------------------------

        This Acknowledgement is executed as of , 19 . by BRITANNIA HACIENDA IV
LIMITED PARTNERSHIP, a Delaware limited partnership ("Landlord"), and
Documentum, Inc., a Delaware corporation ("Tenant"), pursuant to Section 2.5 of
the Lease dated . 19_ between Landlord and Tenant (the "Lease") covering
premises located at Xxxxxxxxxx, XX 00000 (the "Premises").

Landlord and Tenant hereby acknowledge and agree as follows:

        1. The Commencement Date under the Lease is 19_.

        2. The termination date under the Lease shall be 19 . subject to any
applicable provisions of the Lease for extension or early termination thereof.

        3. The final cost of the tenant improvements for the Premises is

         .  Based on that cost, the applicable rental adjustment (if any) and/or
payment (if any) required under the Lease is as follows (if none, so state):


      .

        4. Tenant accepts the Premises and acknowledges the satisfactory
completion of all improvements therein (if any) required to be made by Landlord,
subject only to any applicable "punch list" or similar procedures specifically
provided under the Lease and to the other provisions of Section 2.4 and Exhibit
of the Lease.

EXECUTED as of the date first set forth above.

            "Landlord"                       "Tenant"
        BRITANNIA HACIENDA IV           DOCUMENTUM, INC., a
        LIMITED PARTNERSHIP,            a  Delaware corporation
        Delaware limited partnership

        By : BRITANNIA STONERIDGE, LLC,
             General Partner            By: ________________________

        By: ________________________    Its: _______________________

        X.X. Xxxxxxx
        Manager

                                  EXHIBIT D
                                  ---------

                                      32