Prince William County, VA Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Prince William County, VA, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Aggregate size cap
- 576 sq ft or 30% of house
- Rear-yard setback
- 5 ft side and rear
- Distance from house
- 5 feet minimum
- Corner-lot side street
- 20 feet
- Code section
- Zoning § 32-300.03
Summary
Prince William County caps all detached accessory structures on a lot at 576 total square feet, or 30 percent of the house's floor area if greater. Sheds must sit in a side or rear yard, at least five feet from side and rear property lines and five feet from the
The cumulative building area allowed for all detached accessory structures is 576 total square feet, or 30 percent of the total square footage of the house. If located in the rear yard, the structure must be at least five feet from the side property line, and five feet from the rear property line.
Full Breakdown
Section 32-300.03 of the Zoning Ordinance governs detached accessory buildings in agricultural and residential districts. The cumulative floor area of all such structures is limited (576 sq ft or 30% of the principal building). Sheds may only be located in side or rear yards. In a rear yard they must be five feet from side and rear lines; in a side yard they must meet the principal-structure setbacks for the district. On a corner lot, a minimum 20-foot setback applies to the side lot line adjacent to the side street. A shed 256 sq ft or larger, or over a set height, typically needs a building permit; zoning approval is required in most cases.
Violations & Fines
Building a shed that exceeds the size cap or violates setbacks is a zoning violation; the county can require relocation or removal and assess civil penalties.
Frequently Asked Questions
How big a shed can I build without a permit?
How close to the fence can my shed go?
Sources & Official References
Other rules in Prince William County
How Prince William County compares: Shed Permit Requirements by City·Compare Prince William County to another location·View the Virginia accessory structures overview
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