D.C. Mun. Regs. tit. 11-D, § 5004
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5004
5004.1 An accessory building other than a shed may be located within a rear yard in an R zone provided that the accessory building is:
(a) Set back at least seven and one-half feet (7.5 ft.) from the centerline of any alley; and
(b) Not occupying, in combination with all accessory buildings on a lot, more than thirty percent (thirty percent (30%)) of the area of a required rear yard.
5004.2 A shed may be located within a required rear yard of a principal building.
SOURCE: Final Rulemaking published at 63 DCR 2447, 2834 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 68 DCR 2908 (March 19, 2021); as amended by Final Rulemaking published at 72 DCR 009494 (September 5, 2025).