24-54 - Tower Regulations

LAST AMENDED
12/5/2024


R7-2 R7-3 R8 R9 R10 R11 R12

(a)   In the districts indicated without a letter suffix, any portion or portions of #buildings# which in the aggregate occupy not
       more than 40 percent of the #lot area# of a #zoning lot# or, for #zoning lots# of less than 20,000 square feet, the
       percentage set forth in the table in this Section, may penetrate an established #sky exposure plane# in accordance with
       the provisions of this Section. (Such portion of a #building# that penetrates a #sky exposure plane# is hereinafter
       referred to as a tower.)

LOT COVERAGE OF TOWERS ON SMALL ZONING LOTS


                             Area of #Zoning Lot#                 Maximum Percent of #Lot
                             (in square feet)                     Coverage#


                             10,500 or less                       50


                             10,501 to 11,500                     49


                             11,501 to 12,500                     48


                             12,501 to 13,500                     47


                             13,501 to 14,500                     46


                             14,501 to 15,500                     45


                             15,501 to 16,500                     44


                             16,501 to 17,500                     43


                             17,501 to 18,500                     42


                             18,501 to 19,999                     41
        #Buildings# #developed# or #enlarged# with towers shall comply with either tower-on-a-base regulations or standard
        tower regulations as follows:



        (1)     Applicability of tower-on-a-base regulations

                 The tower-on-a-base regulations of Section 23-442 (Special provisions for certain community districts) shall
                 apply in R9 and R10 Districts to any such #building# that:

                 (i)    is located on a #zoning lot# that fronts upon a #wide street# and is either within 125 feet from such #wide
                          street# frontage along the short dimension of the #block# or within 100 feet from such #wide street#
                          frontage along the long dimension of the #block#; and

                 (ii)   contains more than 25 percent of its total #floor area# in #residential use#.

                 If a portion of such #building# is #developed# or #enlarged# as a #tower# the entire #zoning lot# shall comply
                 with the provisions of Section 23-442.

        (2)     Applicability of standard tower regulations

                 (i)    In R7-2, R7-3 and R8 Districts, the standard tower regulations of Section 23-435 shall apply only to
                         #buildings# #developed# or #enlarged# as towers, where such towers are comprised, at every level, of
                         only #community facility# #uses#.

                 (ii)   In R9 and R10 Districts, the standard tower regulations of Section 23-652 shall apply to any #building#
                         #developed# or #enlarged# as a tower that does not meet the location and #floor area# criteria of
                         paragraph (a)(1) of this Section.

(b)    Inapplicability of tower regulations

        R7-2 R7-3 R8 R9 R10 R11 R12

        In the districts indicated, the provisions of this Section shall not apply to any #development# or #enlargement# located
        wholly or partly in a #Residence District# that is within 100 feet of a #public park# with an area of one acre or more, or a
        #street line# opposite such a #public park#.