43-43 - Maximum Height of Front Wall and Required Front Setbacks LAST AMENDED 6/6/2024 M1 M2 M3 In all districts, other than districts with an A suffix, if the front wall or any other portion of a #building or other structure# is located at the #street line# or within the #initial setback distance# as set forth in the table in this Section, the height of such front wall or other portion of a #building or other structure#, except as otherwise set forth in this Section, shall not exceed the maximum height above #curb level# set forth in the table. Above such maximum height and beyond the #initial setback distance#, the #building or other structure# shall not penetrate the #sky exposure plane# set forth in the table. The regulations of this Section shall apply, except as otherwise provided in Sections 43-42 (Permitted Obstructions), 43-44 (Alternate Front Setbacks) or 43-45 (Tower Regulations). In M1-1 Districts, for #community facility buildings#, the maximum height of a front wall shall be 35 feet or three #stories#, whichever is less, and the height above the #street line# shall be 35 feet, and in M1-4 Districts, for #community facility buildings#, the maximum height of a front wall shall be 60 feet or six #stories#, whichever is less. For #zoning lots# in M1-6 Districts that are both within 100 feet of the western #street line# of Seventh Avenue and between West 28th and West 30th Streets in the Borough of Manhattan, the following #street wall# regulations shall apply to #street# frontages not occupied by a #public plaza#. The #street wall# of a #building# shall be located on the #street line# and extend along the entire #street# frontage of the #zoning lot# up to a minimum height of 125 feet or the height of the #building#, whichever is less, and a maximum height of 150 feet. Above a height of 150 feet, no portion of a #building# may penetrate a #sky exposure plane# except for towers, pursuant to Section 43-45. The #sky exposure plane# shall begin at a height of 150 feet above the #street line# and rise over the #zoning lot# at a slope of 5.6 feet of vertical distance for each foot of horizontal distance on a #wide street#, and at a slope of 2.7 feet of vertical distance for each foot of horizontal distance on a #narrow street#. The provisions of Section 43-44 shall not apply. On the ground floor, recesses shall be permitted where required to provide access to the #building#, provided such recesses do not exceed three feet in depth as measured from the #street line#. Above the level of the second #story#, up to 30 percent of the #aggregate width of street walls# may be recessed beyond the #street line#. However, no recesses shall be permitted within 20 feet of an adjacent #building# and within 30 feet of the intersection of two #street lines#. MAXIMUM HEIGHT OF FRONT WALL AND REQUIRED FRONT SETBACKS #Initial Setback Maximum #Sky Exposure Plane# Distance# Height of a (in feet) Front Wall, or Height Slope over #Zoning Lot# (expressed as a ratio of other Portion above vertical distance to horizontal distance) of a #Street #Building or Line# other structure# (in feet) within the On #Narrow Street# On #Wide street# #Initial Setback On On #Wide Distance# Vertical Horizontal Vertical Horizontal #Narrow Street# Distance Distance Distance Distance Street# Within M1-1 Districts 20 15 30 feet or 2 30 1 to 1 1 to 1 #stories#, whichever is less Within M1-2, M1-4, M2-1, M2-3 or M3 Districts 20 15 60 feet or 4 60 2.7 to 1 5.6 to 1 #stories#, whichever is less Within M1-3, M1-5, M1-6, M2-2 or M2-4 Districts 20 15 85 feet or 6 85 2.7 to 1 5.6 to 1 #stories#, whichever is less SKY EXPOSURE PLANE (23 - 641, 24 - 522, 33 - 432, 43 - 43)