1567.1 The principal building and any accessory building on the lot shall not exceed total lot occupancy of thirty percent (30%); provided that on lots of six thousand, four hundred ninety-nine square feet (6,499 ft.²) or less, the maximum permitted lot occupancy shall be forty percent (40%); on lots of six thousand, five hundred square feet (6,500 ft.²) to eight thousand, nine hundred ninety-nine square feet (8,999 ft.²), the maximum permitted lot occupancy shall be thirty-five percent (35%), but not less than two thousand, six hundred square feet (2,600 ft.²); and on lots of nine thousand square feet (9,000 ft.²) or more, the maximum permitted lot occupancy shall be thirty percent (30%), but not less than three thousand one hundred fifty square feet (3,150 ft.²).

1567.2 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 July 30, 1999; or

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

SOURCE: Final Rulemaking published at 46 DCR 6246, 6248 (July 30, 1999); 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, 8468-69 (October 20, 2000).