Washington, DC Environmental Rules: Coastal Development (2026)
Key Facts
- Minimum setback
- 75 feet from bulkhead or mean high water
- Public trail reservation
- 25 feet, full lot width
- Max building length (no L'Enfant grid)
- 300 feet parallel to water
- Variance authority
- Board of Zoning Adjustment special exception
- Floodplain review agencies
- DOEE, FEMS, MPD, HSEMA
Summary
Any building or structure fronting the Potomac River, Anacostia River or Washington Channel in the District must sit at least 75 feet back from the water. The Zoning Regulations measure that setback from whichever line pushes the building farther inland: the bulkhead or the mean high water mark.
1102.1 A waterfront setback to any building or structure shall be provided in accordance with the following provisions: (a) The waterfront setback shall be a minimum of seventy-five feet (75 ft.) in depth, except as noted in individual zones; (b) The waterfront setback shall be measured inland from the bulkhead or the mean high water level, whichever results in the larger waterfront setback; (c) Parking spaces, passenger drop-off areas, access to parking spaces, and access to loading areas shall not be located within the required waterfront setback area
Full Breakdown
Title 11 DCMR Subtitle C, Chapter 11 governs every waterfront lot in the District: any property with frontage on the Anacostia or Potomac Rivers. 1(b) inland from the bulkhead or the mean high water level, whichever produces the larger setback. 1(c)-(d), though the rule carves out water-taxi ticketing booths, structures tied to a publicly accessible wharf, dock or pier, and the Kingman Island nature education center. 1(e)). 3). 1(f)-(g), weighing factors like public recreational access, minimizing stormwater runoff straight into the river, and screening parking from the waterfront. 5).
Violations & Fines
Building or paving inside the 75-foot waterfront setback, or placing parking and loading access within it, is a zoning violation enforced through the Department of Buildings' permit and inspection process; an owner who builds without the required setback, trail reservation or floodplain review faces a stop-work order and can be compelled to remove or alter the non-conforming structure before a certificate of occupancy issues.
Frequently Asked Questions
How is the 75-foot waterfront setback measured in DC?
Can I put a driveway or parking spot inside the setback?
Does the setback ever shrink?
Sources & Official References
Other rules in Washington
Compare Washington to another location·View the District of Columbia environmental rules overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.