Retaining walls in Alexandria, VA
Walls over 5 ft need a soil report. 2 to 5 ft needs a detail package, a 1,500 psf design or a soil report. Walls up to 2 ft may stand in any yard.
A person last checked these rules on October 20, 2026. This is guidance only, so confirm with Alexandria before you build.
The details
- Engineering tiers come from the city's 2024 soil policy.High confidence
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SetbackIQ reads the zoning, flood zone, historic district, and environmental maps for your lot. Then it applies these rules.
Common questions
- When does a retaining wall need a permit or an engineer in Alexandria?
- Walls over 5 ft need a soil report. 2 to 5 ft needs a detail package, a 1,500 psf design or a soil report. Walls up to 2 ft may stand in any yard.
Sources
- City of Alexandria Code Administration, Soil policy (2024). Checked 2026-10-21
[Retaining walls] Under 2 feet of unbalanced fill: no permit. 2 to 5 feet: a detail package, a 1,500 psf design, or a soil report. Over 5 feet: a soil report is required... [New one- and two-family dwellings: a signed and sealed soil report, flagging] expan…
Disclaimer: This is general information, not legal or professional advice for any one property. Codes change. SetbackIQ is not a zoning determination, a permit, or a survey, and it does not replace an architect, engineer, or lawyer. Confirm with your building and zoning offices before you build, buy, or sign a contract.