D.C. Mun. Regs. tit. 11-X, § 202
202.1 An existing chancery in a low- to medium-density residential zone may be expanded or replaced, subject to disapproval by the Board of Zoning Adjustment, in accordance with the review standards of Subtitle X § 201.8.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3454 (March 4, 2016 – Part 2).