ADU Regulations in Virginia (VA)
Virginia is rated Moderate for ADU construction with an ADU-friendliness score of 75/100 (Very ADU-Friendly). Virginia has a statewide ADU law that sets baseline rules across all municipalities. No owner-occupancy requirement. No additional parking required for ADUs. Virginia passed HB 2045 in 2024, requiring all localities to allow ADUs on single-family lots. The law prohibits localities from requiring special use permits or public hearings for ADUs. However, localities retain authority over size, design, and other standards. Effective July 2025.
Full ADU Regulations Summary for Virginia
| ADUs Allowed | Yes |
| Statewide ADU Law | Yes |
| Maximum ADU Size | Set locally |
| Owner Occupancy Required | No |
| Parking Required | No |
| Minimum Setback | Set locally |
| Permitting Timeline | Varies by locality |
| Impact Fees | Varies by locality |
| Long-Term Rental Allowed | Yes |
| Short-Term Rental (Airbnb) Allowed | Yes |
| Ease of Building | Moderate |
ADU Regulations by City in Virginia
ADU rules can vary by city even within the same state. While Virginia's statewide law sets minimum standards, some cities have additional local provisions. Below are ADU details for 4 cities in Virginia.
Arlington
ADUs allowed by right. Arlington was an early ADU adopter in Virginia. Both attached and detached ADUs permitted.
Richmond
ADUs permitted per state law. Richmond updated zoning for ADU compliance in 2025.
Virginia Beach
ADUs allowed per state law. Virginia Beach adopted ADU provisions in 2025.
Alexandria
ADUs permitted on most residential lots. Alexandria had ADU provisions before the state mandate.
How Virginia Compares to Other States
Below is a comparison of Virginia with five states that have similar ADU-friendliness scores. This comparison helps illustrate where Virginia stands nationally.
| State | Score | Statewide Law | Parking Req? | Owner Occ? | Ease |
|---|---|---|---|---|---|
| Virginia (VA) | 75 | Yes | No | No | Moderate |
| Hawaii (HI) | 75 | Yes | No | No | Moderate |
| New York (NY) | 76 | Yes | No | Yes | Easy |
| Florida (FL) | 78 | Yes | No | No | Easy |
| Montana (MT) | 78 | Yes | No | No | Easy |
| Nevada (NV) | 78 | Yes | No | No | Moderate |
Frequently Asked Questions About ADUs in Virginia
Can I build an ADU in Virginia?
Yes, ADUs are allowed in Virginia. Virginia has a statewide ADU law that requires local jurisdictions to permit ADUs on residential lots. This means your city cannot outright ban ADUs. The ease of building is rated "Moderate" with a friendliness score of 75/100.
Do I need to live on the property to have an ADU in Virginia?
No, Virginia does not require owner occupancy for ADUs. You can rent out both the main house and the ADU, which maximizes rental income potential.
How big can an ADU be in Virginia?
Virginia does not set a statewide maximum ADU size — this is determined by your local jurisdiction. Common local limits range from 600 to 1,200 square feet. Check your city's zoning code for the specific maximum.
Do I need extra parking for an ADU in Virginia?
No, Virginia does not require additional parking for ADUs. This is a significant advantage, as parking requirements are often the biggest barrier to ADU construction on smaller lots.
Can I rent out my ADU in Virginia?
Yes, long-term rentals of ADUs are allowed in Virginia. Short-term rentals (like Airbnb) are also generally permitted, though your city may have separate short-term rental regulations.
How long does it take to get an ADU permit in Virginia?
The permitting timeline in Virginia is: Varies by locality. The statewide law sets maximum review periods that cities must comply with. Actual timelines can be affected by plan review backlogs, inspection scheduling, and the complexity of your project. Pre-approved ADU plans, where available, can significantly speed up the process.
Check ADU Rules for Your City
Use our ADU regulations lookup tool to find the specific rules for your city in Virginia, or browse all 50 states to compare ADU regulations across the country. Remember that local rules may be more specific than state-level regulations.