133-21 - Floor Area Ratio LAST AMENDED 12/5/2024 The underlying #floor area# provisions shall apply except that: (a) the provisions applicable to #sky exposure plane buildings#, set forth in Section 23-73 (Special Provisions for Sky Exposure Plane Buildings), inclusive, shall not apply; and (b) the maximum permitted #floor area ratio# for laboratories listed under Use Group VII shall be 3.40.