Casualty If the Building should be damaged or destroyed by fire or other casualty, Tenant shall give immediate written notice to Landlord. Within thirty (30) days after receipt thereof, Landlord shall notify Tenant whether such repairs can reasonably be made: (1) within thirty (30) days; (2) in more than thirty (30) days but in less than ninety (90) days; or (3) in more than ninety (90) days from the date of such notice. 11.1.1. Less Than 30 Days. If the Building should be damaged only to such extent that rebuilding or repairs can be reasonably completed within thirty (30) days, this Lease shall not terminate and, provided that insurance proceeds are available to fully repair the damage, Landlord shall repair the Building, except that Landlord shall not be required to rebuild, repair or replace any alterations, partitions, fixtures, additions and other improvements which may have been placed in, on or about the Building by or for the benefit of Tenant. The Rent payable hereunder shall be abated proportionately from the date Tenant vacates the Building only to the extent rental abatement insurance proceeds are received by Landlord and the Building are unfit for occupancy. 11.1.2. Greater Than 30 Days. If the Building should be damaged only to such extent that rebuilding or repairs can be reasonably completed in more than thirty (30) days but in less than ninety (90) days, then Landlord shall have the option of: (1) terminating the Lease effective upon the occurrence of such damage, in which event the Rent shall be abated from the date Tenant vacates the Building; or (2) electing to repair the Building, provided insurance proceeds are available to fully repair the damage (except that Landlord shall not be required to rebuild, repair or replace any part of the alterations, partitions, fixtures, additions and other improvements which may have been placed in, on or about the Building by or for the benefit of Tenant). The Rent payable hereunder shall be abated proportionately from the date Tenant vacates the Building only to the extent rental abatement insurance proceeds are received by Landlord and the Building is unfit for occupancy. 11.1.3. Greater Than 90 Days. If the Building should be so damaged that rebuilding or repairs cannot be completed within ninety (90) days, either Landlord or Tenant may terminate by giving written notice within ten (10) days after notice from Landlord regarding the time period of repair; and this Lease and the Rent shall be abated from the date Tenant vacates the Building. In the event that neither party elects to terminate this Lease, Landlord shall promptly commence and diligently prosecute to completion the repairs to the Building , provided insurance proceeds are available to fully repair the damage (except that Landlord shall not be required to rebuild, repair or replace any alterations, partitions, fixtures, additions and other improvements which may have been placed in, on or about the Building by or for the benefit of