D.C. Mun. Regs. tit. 11-I, § 546
546.1 The purposes of the D-5-R zone are to promote high-density residential development through housing requirements and incentives in areas near Mount Vernon Square and in the Mount Vernon Triangle while accommodating high-density commercial and mixed-use development.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2).