D.C. Mun. Regs. tit. 11-D, § 405
Pervious Surface
Effective Aug 25, 202370 DCR 011297Authority: § 1 of the Zoning Act of 1938, approved June 20, 1938 (52 Stat. 797), as amended; D.C. Official Code § 6-641.01 (2018 Repl.), and pursuant to § 6 of the District of Columbia Administrative Procedure Act, approved October 21, 1968 (82 Stat. 1206; D.C. Official Code § 2 505(c) (2016 Repl.)). Source: Final Rulemaking published at 63 DCR 2447, 2834 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023).District of Columbia, Office of the Secretary
Subtitle A
Chapter 1
Chapter 2
Chapter 3
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Chapter 4
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405
PERVIOUS SURFACE
405.1 In the R-1A/FH, R-1B/FH, and R-2/FH zones, the minimum required percentage of pervious surface of a lot shall be fifty percent (50%); provided this subsection shall not:
- (a) Preclude enlargement of a principal building in existence as of May 18, 2007; or
- (b) Create nonconformity of a structure as regulated by this title.
SOURCE: Final Rulemaking published at 63 DCR 2447, 2834 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 70 DCR 011297 (August 25, 2023).