The CG-3 zone is intended to permit high-density mixed-use development with a focus on employment and provide for the establishment of South Capitol Street as a monumental civic boulevard.

capitol gateway zone 3
Development Standards
Floor Area Ratio (max.)1 Height (ft.)2 Penthouse Height (ft.)/Stories Rear Yard (ft.)3 Side Yard (ft.) Green Area Ratio Zoning Regulation Reference
CG-3 6.5 90 20 /
1 story plus mezzanine
12 No side yard is required; however, any side yard provided shall be 5 ft. minimum. 0.25 Subtitle K Chapter 5
7.8 (IZ) Second additional story for mechanical space permitted

Use Permissions Courts Parking Designated Streets Inclusionary Zoning
Subtitle K § 507 Subtitle K § 503.8-503.9 Subtitle K § 513 Subtitle K § 508-510 Subtitle C, Chapter 10

1 Non-residential floor area shall be the total gross floor area of the building not dedicated to uses in one of the following categories: Residential, Emergency shelter, Lodging uses, or Education uses that are operated or chartered by the District Government.
2 Subtitle K § 510 contains design-related conditions on height and upper story setbacks for South Capitol Street, a designated street of Subtitle K § 508.
3 The required rear yard shall be measured as follows: (1) If the lot abuts an alley, the rear yard may be measured from the center line of an alley abutting a rear-lot line, instead of the rear lot-line. If the lot does not abut an alley, the rear yard shall be measured from the rear lot line; (2) Measure a horizontal plane 25 ft. above the mean elevation of the rear lot-line, parallel to the rear lot-line, into the lot, the distance of the required minimum yard identified in the development regulations table; (3) From the furthest point from the rear lot-line along the horizontal plane identified in the previous paragraph, measure a vertical plane up to the maximum height limit of the zone; (4) Measure an angular plane from the mean elevation of the rear lotline, into the lot, with a vertical rise to horizontal run ratio of 4.66:1, up to the maximum height limit of the zone; and (5) The vertical plane of paragraph (3), and, the angular plane of paragraph (4) from the point where it intersects the vertical plane of paragraph (3), shall form the rear yard