Sec. 30-691.2. - Density bonus features and qualifying affordable dwelling units.
The following modifications to applicable zoning district requirements shall be known as density bonus features, and shall be permitted as means to enable increased density of development when affordable dwelling units are provided on a site. In a case where a density bonus feature to be applied to a site is less than the maximum percentage authorized by this section, the percentage of affordable dwelling units or the percentage of floor area devoted to affordable dwelling units necessary to qualify for such bonus feature shall be reduced proportionately, as rounded to the nearest whole percentage.
(1) Sites located in R, RO and HO districts.
a. Single-family detached dwellings. The minimum required lot area, lot width and side yard width applicable to single-family detached dwellings shall be reduced by up to 20 percent, provided that not less than 11 percent of the total number of single-family detached dwellings developed on the site, including the optional density increase, are affordable dwelling units, and provided further that in no case shall the lot area be less than 3,000 square feet, nor shall the lot width be less than 25 feet, nor shall any side yard be less than three feet in width.
b. Single-family attached dwellings. In districts where maximum permitted average density is applicable to single-family attached dwellings, such density shall be increased by up to 20 percent, provided that not less than 11 percent of the total number of single-family attached dwellings developed on the site, including the optional density increase, are affordable dwelling units.
c. Two-family detached dwellings. The minimum required lot area, lot width and side yard width applicable to two-family detached dwellings shall be reduced by up to 20 percent, provided that not less than 11 percent of the total number of two-family detached dwellings developed on the site, including the optional density increase, are affordable dwelling units, and provided further that in no case shall the lot area be less than 3,600 square feet, nor shall the lot width be less than 27 feet, nor shall any side yard be less than three feet in width.
d. Two-family attached dwellings. The minimum required lot area and lot width applicable to two-family attached dwellings shall be reduced by up to 20 percent, provided that not less than 11 percent of the total number of two-family attached dwellings developed on the site, including the optional density increase, are affordable dwelling units, and provided further that in no case shall the lot area be less than 2,600 square feet, nor shall the lot width be less than 23 feet.
e. Multifamily dwelling lot area. In districts where a minimum required lot area per dwelling unit is applicable to multifamily dwellings, the following shall apply:
1. Where 23 or fewer multifamily dwelling units are permitted on a site before application of any density bonus feature, the permitted number of such units shall be increased by up to 15 percent, provided that not less than nine percent of the total number of multifamily dwelling units developed on the site, including the optional density increase, are affordable dwelling units.
2. Where 24 or more multifamily dwelling units are permitted on a site before application of any density bonus feature, the permitted number of such units shall be increased by up to ten percent, provided that not less than six percent of the total number of multifamily dwelling units developed on the site, including the optional density increase, are affordable dwelling units.
f. Multifamily dwelling floor area ratio. In districts where a maximum floor area ratio is applicable to multifamily dwellings, the permitted floor area shall be increased by up to ten percent, provided that not less than six percent of the total multifamily floor area developed on the site, including the optional floor area increase, is devoted to affordable dwelling units.
(2) Sites located in UB and B-1 districts; dwelling use floor area. The maximum permitted floor area devoted to dwelling use shall be increased by up to 20 percent, provided that not less than 11 percent of the total dwelling use floor area, including the optional floor area increase, is devoted to affordable dwelling units.
(3) Sites located in B-2 and B-3 districts.
a. Dwelling use floor area. The maximum permitted floor area devoted to dwelling use shall be increased by up to 20 percent, provided that not less than 11 percent of the total dwelling use floor area, including the optional floor area increase, is devoted to affordable dwelling units.
b. Building height. The maximum permitted building height shall be increased by 12 feet when at least ten percent of the floor area permitted for dwelling use in the building is devoted to affordable dwelling units.
(4) Sites located in the B-4 district; dwelling use floor area. The maximum permitted floor area applicable to dwelling use shall be increased by up to ten percent, provided that not less than six percent of the total dwelling use floor area, including the optional floor area increase, is devoted to affordable dwelling units.
(Code 2004, § 114-691.2; Code 2015, § 30-691.2; Code 2020, § 30-691.2; Ord. No. 2007-187-203, § 1, 9-10-2007)