D.C. Mun. Regs. tit. 11, § 1805
1805.1 The purpose of the SEFC/W-0 District is to:
1805.2 The SEFC/W-0 District is divided into two geographic areas to be known as the Development Area and the Open Space Area.
1805.3 The SEFC/W-0 Development Area consists of the northeastern portion of the SEFC/W-0 District, specifically the existing Building 173 and that portion of the SEFC/W-0 District located directly to the east of Building 173, north of a line extending east from the southern facade of Building 173.
1805.4 The SEFC/W-0 Open Space Area consists of all property within the SEFC/W-0 District that is located outside of the Development Area.
1805.5 Within the SEFC/W-0 Open Space Area, only the buildings, structures, and uses indicated in § 901.5 of this title are permitted. Any use not described in § 901.5, or that is not made subject to Zoning Commission review pursuant to § 1805.6, is not permitted within the SEFC/W-0 District.
1805.6 Within the SEFC/W-0 Open Space Area, only the following buildings, structures, and uses are permitted if reviewed and approved by the Zoning Commission, in accordance with the standards specified in § 927 and procedures specified in § 928 of this title, and the standards specified in § 1808 and procedures specified in § 1809 of this title:
1805.7 In accordance with the procedures outlined in § 1810, two or more lots, whether contiguous or non-contiguous, within the SEFC/W-0 District may be combined for the purposes of allocating density as provided and limited by § 1805.8.
1805.8 A lot or lots in the Development Area may receive and use density allocated from a lot or lots in the Open Space Area, subject to all other applicable area restrictions. If a single lot is included within both geographic areas, the portion of the lot in the Development Area may use the unused density from the portion of the lot in the Open Space Area.
1805.9 The gross floor area of existing Building 173 shall not count toward any FAR computation.
1805.10 The minimum floor-to-ceiling height for the ground floor level of buildings in the SEFC/W-0 District shall be fourteen (14) feet.
1805.11 All proposed structures in the SEFC/W-0 District, or any proposed exterior renovation to any existing buildings or structures in the SEFC/W-0 District that would result in an alteration of the exterior design, shall be subject to review and approval by the Zoning Commission, in accordance with the standards specified in § 927 and procedures specified in § 928 of this title, and the standards set forth in § 1808 and procedures set forth in § 1809.
1805.12 Notwithstanding the requirements of §2517.1, two or more principal buildings or structures may be erected as a matter of right on a single subdivided lot within the SEFC/W-0 District provided that such principal buildings or structures comply with all other requirements of § 2517.
SOURCE: Final Rulemaking published at 51 DCR 6850 (July 9, 2004); as amended by Final Rulemaking published at 55 DCR 5733 (May 16, 2008).