Virginia Statewide Rule

Virginia Accessory Dwelling Unit Enabling Authority

Some RestrictionsApplies statewide across Virginia (2026)

Virginia authorizes localities to permit accessory dwelling units within single-family zones, with the Uniform Statewide Building Code governing construction standards uniformly across all jurisdictions.

Key Facts

Zoning authority: Va. Code § 15.2-2280
Building code: USBC § 36-97 et seq.
State ADU mandate: None statewide
Local override: Zoning only, not USBC

Source: Virginia Legislative Information System

Full Breakdown

Virginia has no statewide ADU mandate, but localities may permit ADUs through zoning under Va. Code § 15.2-2280 (general zoning power). Construction is governed by the Uniform Statewide Building Code (§ 36-97 et seq.), which preempts local building codes and sets uniform requirements for ceiling height, egress, plumbing, and electrical. Localities cannot impose construction standards stricter than USBC, but may regulate ADU size, parking, and owner-occupancy requirements through zoning.

Violations & Penalties

USBC violations: stop-work orders, fines up to $2,500. Zoning violations: locally set, typically $100-$2,500 per day.

Frequently Asked Questions

Does Virginia require cities to allow ADUs?

No. Unlike California or Oregon, Virginia has no statewide ADU mandate. Each locality decides whether and how to permit ADUs through its zoning ordinance.

Can a locality impose stricter building standards on ADUs?

No. The Uniform Statewide Building Code preempts local construction standards. Localities may only regulate ADU zoning aspects like size limits and setbacks.

Sources

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Full Breakdown

Frequently Asked Questions

Does Virginia require cities to allow ADUs?

No. Unlike California or Oregon, Virginia has no statewide ADU mandate. Each locality decides whether and how to permit ADUs through its zoning ordinance.

Can a locality impose stricter building standards on ADUs?

No. The Uniform Statewide Building Code preempts local construction standards. Localities may only regulate ADU zoning aspects like size limits and setbacks.