ADU Construction Permits in Arlington County, Virginia

Building an Accessory Dwelling Unit requires complex zoning, structural, and utility permits.

With a population of around 236,254 residents, Arlington County generally runs a more streamlined permitting process than major urban hubs.

Code Compliance & Inspections

Work on your ADU Construction in Arlington County will be inspected to ensure full compliance with the current Virginia Uniform Statewide Building Code.

Zoning & Cost Factors

Virginia follows the "Dillon Rule," meaning local governments only have the zoning powers explicitly granted to them by the state legislature. Fortunately, Virginia maintains relatively builder-friendly regulations, keeping base permit fees competitive.

In Arlington County, you can begin your application online through the county's permit portal, or submit blueprints and a property survey in person. Including your contractor's Virginia Board for Contractors (DPOR) license number helps avoid rejections.

Typical Submittal Package

When applying for a ADU Construction permit, you or your contractor will generally need to submit the following documentation for the city's review:

Standard Ordinances & Processing Time

Key code points for a ADU Construction in Arlington County: ADUs typically have maximum square footage limits (often 800-1200 sq ft), height restrictions, and usually require dedicated off-street parking depending on local zoning.

Typical processing time: a few days to several weeks, depending on current workload and the season. Contact Permit Arlington Center for a current estimate.