Fence Regulations in Washington, DC

If you live in Washington or are thinking about moving there, fence regulations are one of those things you probably won't think about until they affect you directly. Washington has 2 specific rules on the books covering different aspects of fence regulations, and some of them might surprise you.

Material Restrictions

D.C. law bans barbed-wire fences, barriers, or obstructions along any street, alley, road, or public or private parking within the city's fire limits, and requires a Mayor-issued permit for barbed wire built outside the fire limits. The rule dates to an 1898 act of Congress and remains codified today.

Key details: Governing sections: D.C. Code §§ 9-1213.01 to .05. Inside fire limits: Barbed wire fully banned near public ways. Outside fire limits: Permit from the Mayor required. Removal notice: 30 days after Inspector of Buildings serves notice. Criminal penalty: Up to $10 per day of violation.

A violation is a misdemeanor under D.C. Code § 9-1213.04: conviction in D.C. Superior Court carries a fine of not more than $10 for each day the unlawful fence, barrier, or obstruction continues to exist, which functions as a running daily penalty until it is removed. The District may instead pursue the matter as a civil infraction, with fines, penalties, and fees imposed under Title 2, Chapter 18's civil infractions process, and adjudicated through that same chapter's administrative process rather than in court.

This is not one of those rules that cities tend to ignore. Washington actively enforces its material restrictions requirements.

Retaining Walls

In DC's R and RF residential zones, a retaining wall is capped at 6 feet, dropping to 4 feet along a street frontage, property line or side setback. Taller walls need a Board of Zoning Adjustment special exception under 11 DCMR Subtitle C Chapter 14.

Key details: Baseline max height: 6 ft (§ 1401.2). Street frontage/property line/side setback: 4 ft max (§ 1401.3). R-1-A/R-1-B rear setback zone: 4 ft within 25 ft of rear line. R-2/R-3/RF rear setback zone: 4 ft within 20 ft of rear line. Between property and building line: 42 in max (§ 1401.5).

A retaining wall built taller than these limits without an approved special exception does not conform to the zoning regulations, exposing the owner to a stop-work order or a requirement to modify or remove the noncompliant wall before any related building permit can be finalized. Property owners planning a wall near the caps should apply to the Board of Zoning Adjustment for a special exception under § 1402.1 and Subtitle X before construction, showing site-specific hardship, rather than build first and seek approval afterward.

The Bottom Line

Washington's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Washington is broadly strict or permissive.

Keep in mind that Washington can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.