1513.1 The principal building and any accessory building on the lot shall not exceed a total lot occupancy of thirty percent (30%).

1513.2 The maximum impervious surface coverage on a lot shall be fifty percent (50 %); provided this subsection shall not:

(a) Preclude enlargement of a principal building in existence as of March 20, 1992; and

(b) Create nonconformity of a structure as regulated by chapter 20 of this title.

SOURCE: Final Rulemaking published at 39 DCR 1900, 1901 (March 20, 1992); as amended by Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8455 (October 20, 2000).