121-32 - Height of Street Walls and Maximum Building Height Area Within Subdistrict A-1

LAST AMENDED
12/20/2018

In Subdistrict A-1, the underlying height and setback regulations set forth in Sections 43-43 (Maximum Height of Front Wall
and Required Front Setbacks) and 43-44 (Alternate Front Setbacks) shall not apply. In lieu thereof, the following provisions
shall apply:

(a)    #Street wall# location

       The #street wall# of any #building# shall be located on the #street line# and extend along the entire #street# frontage of
       the #zoning lot# up to at least the maximum base height specified in paragraph (b) of this Section. 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#. In addition, the #street wall# location provision of this paragraph shall
       not apply along such #street line# occupied by a #public plaza# as set forth in Section 37-70 (PUBLIC PLAZAS).
(b)   Base height

      (1)    Along #wide streets#

             On #wide streets#, and on #narrow streets# within 50 feet of their intersection with a #wide street#, the #street
             wall# of a #building# shall rise without setback to a minimum base height of 125 feet and may rise to a maximum
             base height of 155 feet.

             However, where the height of an existing adjacent #street wall# fronting on the same #street line# rises to a height
             exceeding 155 feet before setback, the maximum base height may be increased to the height of such existing
             adjacent #street wall# but shall not exceed a base height of 205 feet. In addition, where existing adjacent #street
             walls# on both sides of the #building# rise to a height exceeding 155 feet before setback, the maximum base height
             of such #building# may be increased to the higher of the two existing adjacent #street walls#, except in no instance
             shall the base height of such #building# exceed 205 feet.

      (2)    Along #narrow streets#

             On #narrow streets#, beyond 50 feet of their intersection with a #wide street#, the #street wall# of a #building#
             shall rise without setback to a minimum base height of 85 feet and may rise to a maximum base height of 135 feet.

             As an alternative, the minimum and maximum base heights applicable to a #wide street# may be applied along a
             #narrow street# beyond 50 feet of a #wide street#, up to a maximum of 100 feet from such #wide street#.

(c)   Required setbacks

      (1)    Along #wide streets#

             For #buildings#, or portions thereof, located on #wide streets# and on #narrow streets# within 100 feet of a #wide
             street#, the portion of such #building# above the applicable maximum base height set forth in paragraph (b)(1) of
             this Section, shall be set back from the #street wall# of the #building# at least 10 feet along a #wide street# and at
             least 15 feet along a #narrow street#, except such dimensions may include the depth of any permitted recesses in
             the #street wall#. Above such required setback, any portion of a #building# on the #zoning lot# shall be considered
             a “tower.”

      (2)    Along #narrow streets#

             For #buildings#, or portions thereof, located on #narrow streets# beyond 100 feet of a #wide street#, the portion
             of such #building# above the applicable maximum base height set forth in paragraph (b)(2) of this Section shall be
             set back from the #street wall# of the #building# at least 15 feet along a #narrow street#, except such dimensions
             may include the depth of any permitted recesses in the #street wall#. Above such required setback, any portion of a
             #building# on the #zoning lot# shall be considered a “tower.”

(d)   Tower Regulations

      Each #story# of a tower above the required setback shall not exceed a maximum #lot coverage# of 40 percent of the #lot
      area# of a #zoning lot# or, for #zoning lots# of less than 20,000 square feet, the percent set forth in Section 43-451
      (Towers on small lots).

(e)   Maximum #building# height
       No height limit shall apply to towers.