5100. GENERAL PROVISIONS

GENERAL PROVISIONS 5100.1 The purposes of this section are to: (a) Facilitate the re-use of existing alley buildings and the use of vacant or underutilized alley lots; (b) Ensure that alley buildings are compatible with the surrounding built environment; and (c) Provide for additional housing options and opportunities, and smaller-scale and low-impact non-residential uses. 5100.2 The following development standards shall apply to buildings and structures on Alley Record Lots in RA zones, and are intended to achieve the purposes of Subtitle F § 5100.1. The base zone development standards shall also apply except as specifically modified by this chapter. In the event of a conflict between the provisions of this chapter and other regulations of this title, the provisions of this chapter shall control. TABLE F § 5100.2: ALLEY LOT DEVELOPMENT STANDARDS (RA) (a) Maximum Height 25 ft. and 2 stories (b) Maximum Lot Occupancy Less than 1,800 sq. ft. of lot area No maximum Less than 2,000 sq. ft. but greater than or equal to 1,800 sq. ft. of lot area 90% 2,000 sq. ft. of lot area or more 80% (c) Minimum Yard Dimensions 5 ft. from any portion of a lot line that abuts any non-Alley Lot; Otherwise none required. (d) Minimum Alley Centerline Setback 7.5 ft. from the centerline of all abutting alleys (e) Minimum Pervious Surface Less than 2,000 sq. ft. of lot area 10% 2,000 sq. ft. of lot area or more 20% 5100.3 Uses on Alley Lots shall be as permitted in Subtitle U, Chapter 6. SOURCE: Final Rulemaking published at 63 DCR 2447, 2915 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 67 DCR 12690 (October 30, 2020); as amended by Final Rulemaking published at 73 DCR 010197 (July 17, 2026). District of Columbia Municipal Regulations Zoning Regulations of 2016: Residential Apartment (RA) Zones 11-F DCMR § 5100