Decks, porches and roof decks in Arlington County, VA
Every deck needs a building permit in Virginia. Decks and porches follow the yard encroachment rules in ACZO § 3.2.6.
A person last checked these rules on October 20, 2026. This is guidance only, so confirm with Arlington County before you build.
The details
- Decks aren't on the USBC exemption list.High confidence
- Encroachment distances for decks and porches are in § 3.2.6.A.3.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
- What are the rules for decks, porches and roof decks in Arlington County?
- Every deck needs a building permit in Virginia. Decks and porches follow the yard encroachment rules in ACZO § 3.2.6.
Sources
- Virginia USBC, 13VAC5-63-80 Section 108.2, Exemptions from application for permit. Checked 2026-10-23
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…
- 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…
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.