23-412 - Additional permitted obstructions

LAST AMENDED
12/5/2024


In all #Residence Districts#, the obstructions set forth in Section 23-411 (General permitted obstructions), as well as the
following obstructions, shall be permitted to penetrate a maximum height limit or #sky exposure plane#:

(a)    Balconies, unenclosed, subject to the provisions of Section 23-62 (Balconies);

(b)    Dormers having an #aggregate width of street walls# equal to not more than 50 percent of the width of the #street wall#
       of a #detached# or #semi-detached# #single-# or #two-family residence#;

(c)    Elevator or stair bulkheads (including shafts and vestibules), roof water tanks, #energy infrastructure equipment#, and
       #accessory# mechanical equipment (including enclosures or other screening), other than solar or wind energy systems
       (whether #accessory# or as part of #energy infrastructure equipment#), provided that:

       (1)    such obstructions shall be located not less than 10 feet from the #street wall# of a #building#, except that such
              obstructions need not be set back more than 25 feet from a #narrow# #street line# or more than 20 feet from a
              #wide# #street line#. However, such restrictions on location shall not apply to elevator or stair bulkheads
              (including shafts or vestibules), provided the #aggregate width of street walls# of such bulkheads within 10 feet of
              a #street wall#, facing each #street# frontage, does not exceed 30 percent of the #street wall# width of the
              #building# facing such frontage;

       (2)    the aggregate area of such obstructions, including any screening, does not exceed 50 percent of the #lot coverage#
              of the #building# and the height of such obstructions shall not exceed 15 feet above the maximum permitted
              height, except where otherwise permitted by paragraph (c)(3) of this Section;

       (3)    the aggregate area of such obstructions, including any screening, does not exceed 30 percent of the #lot coverage#
              of the #building#, and the height of such obstructions shall not exceed:

               (i)   R1 through R5 Districts, for #buildings# on #qualifying residential sites#, or in R3-2, R4, and R5
                     Districts, except R4-1, R4A, R4B and R5A Districts, for any #building#, a height of 25 feet above the
                     maximum permitted height;

              (ii)    in R6 through R12 Districts:

                      (a)   where the maximum permitted height of a #building# is 120 feet or lower, a height of 35 feet above
                            the maximum permitted height; and

                      (b)    where the maximum permitted height of a #building# is greater than 120 feet, a height of 55 feet
                            above the maximum permitted height; and

       (4)    all equipment shall be subject to the applicable provisions of Section 26-50 (SPECIAL SCREENING AND
              ENCLOSURE PROVISIONS);

(d)    Wind energy systems, #accessory# or as part of an #energy infrastructure equipment#, on portions of #buildings# with a
      height of 100 feet or greater, provided:

      (1)    the highest point of the wind turbine assembly does not exceed 55 feet;

      (2)    no portion of the wind turbine assembly is closer than 10 feet to any #lot line#; and

      (3)    the diameter of the swept area of the rotor does not exceed 15 feet.