123-652
Special base and building heights
Where the designated Residence District is an R6 through R12 District, the following shall apply.
- Districts with a letter suffix
Where the designated Residence District is an R6 through R12 District with a letter suffix, the minimum base height, maximum base height and maximum building height shall be as set forth in the table in Section 23-432 (Height and setback requirements) for the applicable Residence District. Separate maximum base heights and maximum building heights are set forth for zoning lots containing standard residences and zoning lots containing qualifying affordable housing or qualifying senior housing. For portions of a building street wall that exceed the maximum base height, a setback shall be provided at a height not lower than the minimum base height or higher than the maximum base height, in accordance with Section 23-433 (Standard setback regulations).
However, for M1 Districts with an A suffix paired with a Residence District, the applicable height and setback regulations for the district shall be whichever regulations permit the tallest overall heights between the height and setback regulations applicable to the particular Manufacturing District set forth in the table in Section 43-46 (Height and Setback Provisions for Districts With an A Suffix), or the height and setback regulations applicable to the particular Residence District set forth in Section 23-432. In either case, for zoning lots with a lot area greater than or equal to 20,000 square feet, a building may exceed the maximum building heights established in such tables by 25 percent. - Districts without a letter suffix
Where the designated Residence District is an R6 through R12 District without a letter suffix, the minimum base height, maximum base height and maximum building height shall be as set forth in the following table. For portions of a building street wall that exceed the maximum base height, at a height not lower than the minimum base height or higher than the maximum base height, a setback shall be provided in accordance with Section 23-433.
MAXIMUM BASE HEIGHT AND MAXIMUM BUILDING HEIGHTS
District
Minimum Base Height (in feet)
Maximum Base Height (in feet)
Maximum Height of Buildings or other Structures (in feet)
R6-2
30
55
95
R6 R6-1
40
65
125
R7-1 R7-2
40
85
155
R7-3
60
105
185
R8
60
105
215
R81
60
125
255
R9
60
135
285
R9-1
60
155
315
R10
60
155
355
R11
60
155
405
R12
60
155
495
1 for UAP developments or qualifying senior housing on zoning lots, or portions thereof, within 100 feet of a wide street
However, for M1 Districts with an A suffix paired with a Residence District, the applicable height and setback regulations for the district shall be whichever regulations permit the tallest overall heights between the height and setback regulations applicable to the particular Manufacturing District set forth in the table in Section 43-46, or the height and setback regulations applicable to the particular Residence District set forth in this Section.
In addition, for all buildings, the maximum building heights set forth in this paragraph may be increased by 25 percent, provided that the gross area of any such story located above the maximum building height does not exceed 90 percent of the gross area of that story located directly below the maximum building height.
