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D.C. Municipal Regulations (Last Updated: September 13, 2017) |
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Title 11. ZONING REGULATIONS OF 2016 |
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SubTilte 11-K. SPECIAL PURPOSE ZONES |
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Chapter 11-K5. CAPITOL GATEWAY ZONES - CG-1 THROUGH CG-7 |
Section 11-K503. DEVELOPMENT STANDARDS (CG-3)
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503.1 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.
503.2 The development standards in Subtitle K §§ 503.3 through 503.10 shall control the bulk of buildings in CG-3 zone.
503.3 The maximum permitted FAR in the CG-3 zone shall be 6.5 or 7.8 FAR with IZ. Non-residential floor area shall be the total gross floor area of the building not dedicated to uses in one (1) of the following categories:
(a) Residential;
(b) Emergency shelter;
(c) Lodging uses; or
(d) Education uses that are operated or chartered by the District Government.
503.4 The maximum permitted building height, not including the penthouse, in the CG-3 zone shall be ninety feet (90 ft.). Subtitle K § 510 contains design-related conditions on height and upper story setbacks for segments of South Capitol Street, a designated street of Subtitle K § 508.
503.5 The maximum permitted height of a penthouse in the CG-3 zone shall be twenty feet (20 ft.), and the maximum number of stories within the penthouse shall be one (1) plus a mezzanine, except that a second story for penthouse mechanical space shall be permitted.
503.6 The rear yard requirements for the CG-3 zone are as follows:
(a) A minimum rear yard of twelve feet (12 ft.) shall be required in the CG-3 zone; and
(b) 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 twenty-five feet (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 lot-line, into the lot, with a vertical rise to horizontal run ratio of four and sixty-six tenths to one (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.
503.7 No side yard is required for the principal building; however, any side yard provided on any portion of the principal building shall be at least two inches (2 in.) per one foot (1 ft.) of height, and no less than five feet (5 ft.).
503.8 Where an open court is provided, the court shall have the following minimum dimensions:
TABLE K § 503.8: MINIMUM COURT DIMENSIONS
Type of Structure
Minimum Width Open Court
Minimum Width Closed Court
Minimum Area Closed Court
Residential (except hotel):
4 in./ft. of height of court;
10 ft. minimum.
4 in./ft. of height of court;
15 ft. minimum.
Twice the square of the required width of court dimension;
350 sq. ft. minimum.
Non-Residential and Lodging:
2.5 in./ft. of height of court;
6 ft. minimum.
2.5 in./ft. of height of court;
12 ft. minimum.
Twice the square of the required width of court dimension;
250 sq. ft. minimum.
503.9 In the case of an alteration affecting the amount of light and ventilation required in an existing building in an R, RF, or RA zone by other municipal law or regulation, no legally required window shall be permitted to open onto a court that does not comply with the dimensions given in Subtitle K § 503.8.
503.10 The minimum required GAR for the CG-3 zone shall be 0.25.