239.1 Within the SEFC-4 development area, use permissions, including uses permitted as a matter of right, as a special exception, and as an accessory use, and uses not permitted shall be in accordance with the provisions of MU-Use Group B, as prescribed in Subtitle U §§ 505 and 506. In addition, the following uses shall be permitted if reviewed and approved by the Zoning Commission in accordance with the standards specified in Subtitle K § 241 and procedures specified in Subtitle K § 242:

1. (a) Education;
2. (b) Institutional; and
3. (c) Eating and drinking establishments.

239.2 Within the SEFC-4 open space area, only the following uses shall be permitted as a matter of right:

1. (a) Boat construction on an occasional basis by a local community organization;
2. (b) Community garden operated by a local community organization or District government agency;
3. (c) Publicly-accessible park or open space, playground, or athletic field, including pedestrian and bicycle trails, necessary support facilities, and fitness circuits;
4. (d) Public nature education or interpretive center including a boat dock; and
5. (e) Seasonal or occasional market for produce, arts, and crafts, with non-permanent structures.

239.3 Within the SEFC-4 open space area, the following buildings, structures, and uses are permitted only if reviewed and approved by the Zoning Commission in accordance with the standards specified in Subtitle K § 241 and procedures specified in Subtitle K § 242:

1. (a) Boat launching facility, dock, wharf, or pier for use by the general public;
2. (b) Boat rental facility for non-motorized water vessels;
3. (c) Cruise line operation, including necessary associated dock and land facilities;
4. (d) Solid, freestanding wall and/or security gate exceeding a height of four feet (4

ft.), not including structural supports;

(e) Marina, not including floating homes;

(f) Public food concession stand(s)/kiosk(s) which may serve alcoholic drinks, to a maximum gross of three thousand square feet (3,000 sq. ft.);

(g) Water taxi and related facilities, including information/ticket booth and passenger shelter; and

(h) Other publicly-accessible maritime uses normally requiring direct access to the water.

239.4 The minimum floor-to-ceiling height for the ground floor level of buildings shall be fourteen feet (14 ft.).

239.5 All proposed structures in the SEFC-4 zone, or any proposed exterior renovation to any existing buildings or structures in the SEFC-4 zone 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 set forth in Subtitle K § 241 and procedures set forth in Subtitle K § 242.

SOURCE: Final Rulemaking published at 63 DCR 2447, 3176 (March 4, 2016 – Part 2); as amended by Final Rulemaking published at 72 DCR 012752 (November 14, 2025).