Backyard project permits in Alexandria, VA
Alexandria follows Virginia's 256 sq ft shed exemption, but a shed in a required yard is limited to 100 sq ft and 10 ft tall, and less in the historic districts.
Rules last checked by a person on October 20, 2026. Guidance only; confirm with Alexandria before you build.
| Typical project | Permit? |
|---|---|
| Shed10 by 12 ft shed, 10 ft tall, no power | No: no permit as described |
| Deck160 sq ft freestanding deck, 24 in high | Yes: Building permit |
| Fence6 ft wood fence in the back yard | Probably not: no permit as described |
| Garage24 by 20 ft detached garage with lights | Yes: Building permit, Electrical permit |
| ADU650 sq ft detached backyard cottage | Yes: Building permit, Zoning reviewConfidence: medium |
Check your exact lot
Permit office
Virginia USBC (2021) and the City of Alexandria Zoning Ordinance (Article VII, codified through Ord. 5615, Supp. 103).