A landlord and a commercial tenant entered into a lease amendment involving cellar space. The tenant intended to convert existing office space into a restaurant and bar. Except for a landlord construction allowance, the tenant was to bear the costs of converting the space.

The landlord had “pre-approved” the tenant’s “initial plans and designs.” The lease provided that “[o]nly if tenant chose to depart significantly from those plans did the lease afford landlord certain additional review and approval rights.” If the tenant changed its plans, the tenant was obligated to submit “detailed architectural, engineering and mechanical plans for landlord’s review and approval.”