Damage or Destruction of Premises (a) If the Premises or any part thereof shall be damaged by fire or other insured casualty, then, subject to the last paragraph of this Section, Landlord shall proceed with diligence, subject to then applicable statutes, building codes, zoning ordinances and regulations of any governmental authority, and at the expense of Landlord (but only to the extent of insurance proceeds made available to Landlord by any mortgagee of the Building and any ground lessor) to repair or cause to be repaired such damage (other than any Initial Tenant Improvements not deemed to be fixtures covered by Landlord’s property insurance and Tenant Work, which Tenant shall promptly commence, and proceed with diligence, to restore). All such repairs made necessary by any act or omission of Tenant shall be made at the Tenant’s expense to the extent that the cost of such repairs are less than the deductible amount in Landlord’s insurance policy. All repairs to and replacements of Tenant Property not deemed to be fixtures covered by Landlord’s property insurance and any Initial Tenant Improvements and Tenant Work shall be made by and at the expense of Tenant. The cost of any repairs performed under this Section by Landlord at Tenant’s request and at Tenant’s expense (including costs of design fees, financing, and charges for administration, overhead and construction management services by Landlord and Landlord’s contractor) shall constitute Additional Rent hereunder. If the Premises or any part thereof shall have been rendered unfit for use and occupation hereunder by reason of such damage, the Base Rent or a just and proportionate part thereof, according to the nature and extent to which the Premises shall have been so rendered unfit, shall be abated until the Premises (except as to Tenant Property, Initial Tenant Improvements not deemed to be fixtures covered by Landlord’s property insurance and any Tenant Work) shall have been restored as nearly as practicable to the condition in which they were immediately prior to such fire or other casualty; and that if and to the extent Landlord shall be unable to collect the insurance proceeds (including rent insurance proceeds) applicable to such damage because of some action or inaction on the part of Tenant, or the employees, licensees or invitees of Tenant, the cost of repairing such damage shall be paid by Tenant and there shall be no abatement of rent. Landlord shall not be liable for delays in the making of any such repairs that are due to government regulation, casualties, and strikes, unavailability of labor and materials, delays in obtaining insurance proceeds, and other causes beyond the reasonable control of Landlord, nor shall Landlord be liable for any inconvenience or annoyance to Tenant or injury to the business of Tenant resulting from delays in repairing such damage. If the Premises or the Building are substantially damaged so as to prevent Tenant from using the Premises for the Permitted Use and the Premises have not been restored to the condition required pursuant to the terms of this Lease within two hundred and seventy (270) days following said casualty (or if such casualty occurs during the last 18 months of the term, within ninety (90) days after the date of such casualty), then Tenant may terminate this Lease upon thirty (30) days written notice to Landlord unless Landlord shall substantially complete such repair and restoration within such thirty (30) day period in which event Tenant’s termination shall be void and of no further force or effect.