1543.1 The restrictions under this section shall apply to both the R-1-A and the R-1-B Districts within the WH Overlay District.

1543.2 No structure, including accessory buildings, shall occupy an area in excess of thirty percent (30%) of the lot; except that:

1. (a) Structures on lots of between five thousand square feet and six thousand six hundred and sixty-seven square feet (5,000 ft.2 and 6,667 ft.2) may occupy up to two thousand square feet (2,000 ft.2); and
2. (b) Structures on lots of less than five thousand square feet (5,000 ft.2) may occupy up to forty percent (40%) of the area of the lot.

1543.3 The gross floor area of all buildings and structures on the lot shall not exceed the sum of two thousand square feet (2,000 ft.2) plus forty percent (40%) of the area of the lot; provided, that the following modifications of gross floor area shall apply in the WH Overlay District:

1. (a) The first two hundred square feet (200 ft.2) of an open porch, or total open porch space if there is more than one open porch, and the first six hundred square feet (600 ft.2) of a garage shall not count in gross floor area; and
2. (b) Basement or cellar floor area shall count in gross floor area if a finished floor is provided, if the floor to ceiling height is in excess of six feet, six inches (6 ft., 6 in.), and shall count only up to a floor area equal to five (5) times the total fenestration area for the cellar or basement floor.

1543.4 All residential buildings shall have a front yard setback equal to or greater than the average setback of all structures on the same side of the street in the block where the building in question is located. The required setbacks are depicted in the map entitled, "Required Front Yard Setbacks," which is a part of this overlay district and located in the D.C. Office of Zoning and in the Zoning Division of the Department of Consumer and Regulatory Affairs.

SOURCE: Final Rulemaking published at 39 DCR 6827, 6829 (September 11, 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, 8463 (October 20, 2000).

EDITOR'S NOTE: The map entitled "Required Front Yard Setbacks," is published at 39 DCR 6827, 6831 (September 11, 1992).