5100. GENERAL PROVISIONS

5100 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 commercial uses. 5100.2 The following development standards shall apply to buildings and structures on Alley Record Lots in the MU zones, and are intended to achieve the purposes of G § 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 G § 5100.21: ALLEY LOT DEVELOPMENT STANDARDS (MU) (a) Maximum Height MU-6, MU-8, MU-9, MU-10, and MU-15 zones 30 ft. and 3 stories All other MU zones 25 ft. and 2 stories (b) Maximum Lot Occupancy No Maximum (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 Green Area Ratio As required by zone 5100.3 Uses on Alley Lots shall be as permitted in Subtitle U, Chapter 6. SOURCE: Final Rulemaking published at 63 DCR 2447, 2944 (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 70 DCR 011297 (August 25, 2023); as amended by Final Rulemaking published at 73 DCR 010197 (July 17, 2026). District of Columbia Municipal Regulations Zoning Regulations of 2016: Mixed-Use (MU) Zones 11-G DCMR § 5100