Washington County, AR Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Washington County, AR, 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
- County Permit
- Not required, unincorporated
- Floodplain
- Development permit still applies
- Habitable Use
- Needs dwelling-unit approval
- Cities Differ
- Permit by size threshold
Summary
A backyard shed needs no county building permit in unincorporated Washington County, which enforces no building code for accessory structures. Zoning setbacks and a floodplain permit can still apply; cities permit sheds by size.
Washington County does not enforce building codes for agricultural buildings or single-family homes in unincorporated areas, thus, no building permits or inspections will be required, and no certificates of occupancy will be issued unless requested.
Full Breakdown
Because unincorporated Washington County enforces no building code for single-family homes and their accessory structures, a storage shed or outbuilding needs no building permit, inspection, or certificate of occupancy unless you request one. Practical limits remain: the parcel's one-unit-per-acre zoning carries setbacks a structure should respect, a floodplain development permit is required in mapped flood zones, and a shed cannot be used as a second dwelling without Additional Dwelling Unit review. Inside Fayetteville and Springdale, small sheds under a size threshold are permit-exempt, but larger ones need a building permit and must meet zoning setbacks.
Violations & Fines
Placing a shed in a floodplain without the county floodplain permit, or living in one without Additional Dwelling Unit and septic approval, triggers enforcement and possible removal.
Frequently Asked Questions
Do I need a permit for a shed?
Can I live in my shed?
Sources & Official References
Other rules in Washington County
How Washington County compares: Shed Permit Requirements by City·Compare Washington County to another location·View the Arkansas accessory structures overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.