Fence Regulations in Alexandria, VA

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

Height Limits

On corner and through lots, Alexandria allows open and closed fences up to six feet in the secondary front yard only if they sit behind the front building wall and are set back at least two feet from the sidewalk edge (or the lot line), per Zoning Ordinance Sec. 7-1701 and 7-1702.

Key details: Max fence height, secondary front yard: 6 feet. Minimum sidewalk setback: 2 feet. Alternative setback rule: Halfway to owner's front wall. Vision-clearance obstruction limit: 4 feet above curb grade. Vision triangle radius: 30 feet from curb intersection.

A fence that exceeds six feet in the secondary front yard, or that fails to meet the two-foot sidewalk setback (or the block-face alternative) under Sec. 7-1702, is a zoning ordinance violation subject to the city's standard zoning enforcement process, including a stop-work or removal order from the Department of Planning and Zoning; a fence within the vision-clearance triangle of Sec. 7-800 is enforced under that section's four-foot obstruction limit regardless of the corner-lot fence allowance.

Retaining Walls

Alexandria requires an approved site plan before anyone builds a retaining wall or changes land contours by more than two feet within ten feet of neighboring property, or more than three feet elsewhere, under Sec. 11-403(C) of the Zoning Ordinance. The rule is unconditional for retaining walls: the code lists building one as its own trigger, separate from the grading thresholds.

Key details: Site plan trigger: Any retaining wall, listed separately (Sec. 11-403(C)). Grade-change threshold: >2 ft within 10 ft of neighbor, or >3 ft elsewhere. Small-building exemption: Under 3,000 sq ft, no excess grade change (Sec. 11-404(C)). City-project exemption: Municipal retaining walls only (Sec. 11-404(F)). Plan preparer: VA-licensed engineer or land surveyor (Sec. 11-406(B)).

Building a retaining wall without an approved site plan makes the structure unlawful under Sec. 11-203(A). The director can issue written notice under Sec. 11-204 ordering the wall brought into compliance or removed, with ten days to correct before further action. Left uncorrected, it becomes a class five civil violation under the catch-all in Sec. 11-207(A)(11): $200 for the first offense and $500 for each later violation of the same requirement, capped at $5,000 in total penalties under Sec. 11-207(C)(5), (C)(8).

The Bottom Line

Alexandria'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 Alexandria is broadly strict or permissive.

All of the above reflects Alexandria's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.