23-612 - Planting strips in residence districts LAST AMENDED 12/5/2024 R1 R2 R3 R4 R5 In the districts indicated, the following shall provide and maintain a planting strip in accordance with Section 26-42: (a) #developments#, or #enlargements# that increase the #floor area# on a #zoning lot# by 20 percent or more. However, planting strips shall not be required for #enlargements# of #single-# or #two-family# #residences#; (b) #conversions# of 20 percent or more of the #floor area# of a #building# to a #residential use#; or (c) construction of a #detached# garage that is 400 square feet or greater.