The purposes of the D-6 zone are to permit high-density development of mixed uses in an area bounded generally by New York Avenue, N.W. and M Street, N.W. between 12th and 19th Streets, N.W. and, in conjunction with sub-area use requirements, to promote the retention of a vital retail corridor on lower Connecticut Avenue, N.W.

A building with frontage on a designated primary or secondary street shall meet the design requirements on Subtitle I § 602.

The following Downtown Sub-Areas are found within the D-6 zone: Downtown Retail Core, Downtown Arts, Pennsylvania Avenue, Lower Connecticut Avenue Corridor.

Development Standards
Floor Area Ratio (max.) 1 Height (ft.) Penthouse Height (ft.)/Stories Lot Occupancy
(percentage) 2
Rear Yard (ft.) Side Yard (ft.) Green Area Ratio Zoning Regulation Reference
D-6 None 130 (fronts on right-of-way of at least 110 ft.) 20 100 2.5 in. per 1 ft. of vertical distance from the mean finished grade at the middle of the rear of the
structure to the highest point of the main roof or parapet, but not less than 12 ft.
If provided, at least 2 in. wide for each 1 ft. of height of building but no less than 5 ft. 0.20 Subtitle I, Chapter 5
10.0 (non-residential, fronts on right-of-way of at least 110 ft.) 120 (fronts on right-of-way of at least 100 ft. but less than 110 ft.) 1 plus mezzanine; Second story permitted for penthouse mechanical space
8.5 (non-residential, fronts on right-of-way of 110 ft. or less) 110 (fronts on right-of-way of at least 90 ft. but less than 100 ft.)
No taller than the width of the right of way plus 20 feet (on streets less than 90 ft)


Use Permissions 3 Courtyards Parking 4 Loading Alley Lots Front Build-to
Subtitle U, Chapter 7 Subtitle I § 207 Subtitle C, Chapter 7 Subtitle C, Chapter 9 Subtitle I § 210 Subtitle I § 203

The D-6 zone is not subject to the Inclusionary Zoning provisions of Subtitle C, Chapter 10; however, a building in the D-6 zone may generate or use credits in accordance with Subtitle I, Chapters 8 and 9, which explains the credit system relating to Transferable Development Rights (“TDR”) or Combined Lot Development (“CLD”) rights.

The permitted Floor Area Ratio (“FAR”) and height of a building in the D-6 zone are based on the right-of-way width of the street upon which it fronts, as detailed in the table below.

A front setback is not required, except as otherwise required by Subtitle I § 612 in the case of a designated primary street segment.

1 The maximum permitted FAR for a building shall be the density achievable within the height and bulk permitted by the zone and any applicable sub-area regulations: (a) If all of the building’s FAR is devoted to residential use; (b) If all FAR exceeding the non-residential density permitted in Subtitle I § 555.3 is devoted to residential use; or (c) If conditions (a) or (b) are not satisfied through the use of credits provided for by Subtitle I, Chapters 8 and 9 enable.
Subject to applicable regulations governing courts, side or rear yards, front setback or build-to lines, easements or historic preservation.
3 Unless modified in in Subtitle I, Chapter 3 or by regulations governing a specific Downtown sub-area.
4 No parking is required in this zone, but parking spaces provided are subject to Subtitle C, Chapter 7.