23-426 - Additional height and setback provisions LAST AMENDED 12/5/2024 R1 R2 R3 R4 R5 In the districts indicated, the following additional regulations shall apply: (a) For any #zoning lot# located in a Historic District designated by the Landmarks Preservation Commission, any applicable maximum height regulations of Section 23-42, inclusive, or as modified in any applicable Special District, may be modified as follows: the maximum base height may vary between the maximum set forth in Sections 23-422, 23-424, and 23-425, and the height of an adjacent #building# before setback, if such height is higher than the maximum base height. (b) For #buildings# containing #multiple dwelling residences# with #street wall# widths exceeding 150 feet, as measured parallel to the #street line#, a minimum of 20 percent of the entire surface area of each #street wall# shall either recess or project a minimum of three feet from the #street wall#. The depth of required recesses or projections of a #building# shall be measured from the #street wall#.