Approved Tenant Changes. Tenant has requested, and Landlord has approved, certain changes to the Base Building Plans as set forth on [Schedule 2], attached hereto (collectively, "Approved Tenant Changes"). Landlord shall, promptly following the full execution and delivery of the Lease by Landlord and Tenant, deliver to Tenant written notice of the costs that will be incurred to implement the proposed Tenant Requested Change (a "Landlord's Change Notice"). After receipt of Landlord's Change Notice, if Tenant advises Landlord to proceed with the proposed Tenant Requested Change, then the proposed Tenant Requested Change shall be incorporated into the

Tenant Requested Changes. Tenant shall have the right to request additional changes to the Base Building Improvements in writing, subject to Landlord's reasonable approval, and provided that, # such modifications do not materially adversely affect the quality of the Base Building Improvements, # such modifications are consistent with the base building components of Comparable Buildings, # such changes do not materially adversely affect the LEED certification for the Base Building Improvements, # such changes comply with Applicable Laws, # such changes do not have a material adverse effect on the Building Structure or the Building Systems and do not affect the exterior appearance of the Building, # such changes will not materially affect the critical path of construction of the Base Building Improvements, the parties acknowledging that any change that would delay the critical path of construction is material, and # such changes, in Landlord’s reasonable opinion, do not adversely affect Landlord’s ability to lease space in the Buildings following the expiration or earlier termination of this Lease (collectively, "Tenant Requested Changes"). Landlord shall approve or disapprove of any proposed Tenant Requested Change within ten (10) business days after receipt thereof. If Landlord disapproves of any proposed Tenant Requested Change, then Landlord shall state in reasonable detail its reasons for disapproving the proposed Tenant Requested Change. Following any request by Tenant for Tenant Requested Changes approved by Landlord, Landlord shall promptly deliver to Tenant written notice of the cost estimate of the costs that will be incurred to implement the proposed Tenant Requested Change (a "Landlord's Change Notice"). After receipt of Landlord's Change Notice, if Tenant advises Landlord to proceed with the proposed Tenant Requested Change, then the proposed Tenant Requested Change shall be incorporated into the Base Building Plans and the Base Building Improvements and the cost of each approved Tenant Requested Change shall be deducted from the Tenant Improvement Allowance, within thirty (30) days after receipt of an invoice.