Do you need a permit for a deck in Arlington County, VA?
Yes. Virginia's building code has no deck exemption, so every deck needs a building permit.
Every deck needs a building permit.
Decks 8 in or more above grade can reach 4 ft into a required yard, but no closer than 5 ft to a lot line.
Rules last checked by a person on October 20, 2026. Guidance only; confirm with Arlington County before you build.
Check your exact lot
Setbacks depend on your zoning district, and a flood zone can change the permit answer. Enter your address to see both.
Permits a deck can need in Arlington County
| Permit | When it applies |
|---|---|
| Building permit | Virginia's building code has no deck exemption, so every deck needs a building permit. |
| Floodplain development permit | In a FEMA special flood hazard area, all development needs a permit. |
Limits that apply citywide
| Into a required yard | Up to 4 ft, but not within 5 ft of a lot line (decks 8 in or more above grade) |
|---|---|
| House rear setback | 25 ft on interior lots |
Local details
- Call 811 at least a few days before you dig footings or post holes. Utility locating is free.
- HOA covenants and deed restrictions can be stricter than city rules. Check yours before you build.
How to apply
Questions people ask
- When does a deck need a building permit in Arlington County?
- Virginia's building code has no deck exemption, so every deck needs a building permit.
- Where do I apply for a deck permit in Arlington County?
- Apply through Arlington Permits portal, or call 703-228-3800.
Sources
- Virginia USBC, 13VAC5-63-80 Section 108.2, Exemptions from application for permit. Checked 2026-10-20.
2. One story detached structures used as tool and storage sheds, playhouses, or similar uses, provided the building area does not exceed 256 square feet... 5. Fences of any height unless required for pedestrian safety as provided for by Section 3306 or used…
- 44 CFR 59.1, definition of development (NFIP). Checked 2026-10-19.
Development means any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures...
- 44 CFR 60.3, floodplain management criteria. Checked 2026-10-19.
Require permits for all proposed construction or other development in the community...
- Arlington County Zoning Ordinance § 3.2.6.A.2(b) and 3.2.6.A.3, yards and encroachments. Checked 2026-10-20.
For all one-family dwellings... 10 feet, provided that one side yard may be reduced to eight feet. The aggregate width of both side yards on any lot shall not be less than 30 percent of the required width of the lot, provided that on interior lots no struct…