Building permits in Washington County, Arkansas
Find the right authority before you build. Washington County permitting follows Arkansas law — here is exactly who issues the permit and where to start.
County + cities (mixed)
Washington County — Planning Office
The Washington County Planning Office issues building permits only for unincorporated areas of the county. Inside incorporated cities — Fayetteville, Springdale, Prairie Grove, Lincoln, Tontitown, Greenland, Elm Springs — the municipal building department handles permits.
Open the official permit portal →
The county enforces the Arkansas Fire Prevention Code (2021 IBC/IRC with amendments). Confirm whether your address falls inside an incorporated city before applying.
Permit cheat-sheet (Arkansas rules)
| Project | Permit? | Authority | Typical fee | Timeline | Go / No-Go | Key notes |
|---|---|---|---|---|---|---|
| 🏠 Accessory Dwelling Unit (ADU) | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Case by case | Arkansas has no statewide ADU law. ADUs are allowed only where the local zoning ordinance permits them (e.g., Fayetteville allows ADUs). When permitted by zoning, a full building permit is required. |
| 🪵 Deck / Porch | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | Little Rock residential plan review typically 5–15 business days. | Generally allowed | Ledger-board attachment is a key inspection point; Arkansas frost line is a mild 12–18 in. Exempt: Decks >30 in above grade or >200 sq ft require a permit (IRC + local); ground-level decks below both are generally exempt. |
| 🧱 Fence / Wall | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Corner-lot sight-line rules may apply. Exempt: Little Rock exempts residential fences <7 ft from a building permit; most Arkansas cities exempt fences under 6–7 ft. |
| 🛖 Shed / Outbuilding | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Zoning setback and lot-coverage rules still apply to exempt sheds. Exempt: Little Rock exempts one-story detached sheds <200 sq ft; IRC exempts ≤120 sq ft. Sheds with utilities need a permit. |
| 🪜 Basement Finish | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | Little Rock residential plan review typically 5–15 business days. | Generally allowed | Finishing a basement to living space requires framing, electrical, plumbing, and mechanical permits; bedrooms need egress windows. |
| 🚗 Garage / Carport | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | Little Rock residential plan review typically 5–15 business days. | Generally allowed | New attached or detached garages require a full building permit and trade permits. |
| ☀️ Rooftop Solar PV | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Arkansas Energy Code (2009 IECC base, amended) applies; structural/snow-load review. |
| 🌡️ HVAC Replacement | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Licensed mechanical contractors required; equipment must meet current energy-efficiency rules. |
| 🍳 Kitchen Remodel | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Verify with the local building department before altering layouts. |
| 🛁 Bathroom Remodel | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Ventilation to the exterior is required. |
| 🏗️ Room Addition | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | Little Rock residential plan review typically 5–15 business days. | Generally allowed | Any new conditioned footprint requires a building permit, setback/zoning review, and trade permits. |
| 🪟 Window / Door Replacement | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Replacement products should meet the energy code when the code is triggered. Exempt: Same-size, in-kind window/door replacement is generally exempt. |
| 🏘️ Roof Replacement | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Verify with the local building department. Exempt: Same-material, same-slope re-roof is often exempt or over-the-counter; structural deck changes require a permit. |
| 🅿️ Driveway / Parking Pad | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | A separate right-of-way permit is usually needed to cut the curb. Exempt: Replacing a driveway in the same footprint (no new curb cut) is generally exempt. |
| 🏊 Swimming Pool / Spa | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | All pools require a code-compliant barrier/fence; barrier inspection required before filling. |
| 🧱 Retaining Wall | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Expansive clay soils in the Delta and rocky soils in the northwest affect wall design. Exempt: Walls >4 ft require a permit; Little Rock requires an engineered plan for walls over 4 ft. |
| 💥 Demolition / Teardown | Permit required | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | A demolition permit is required before tearing down a house or attached structure. Local building departments require utility disconnects (electric, gas, water, sewer) and an asbestos/lead-paint clearance for pre-1978 homes before demolition. |
| 🚰 Septic System | Permit required | county | Permit fee set by the county health unit; engineered systems cost more. | — | Generally allowed | New or replacement onsite wastewater (septic) systems require a permit from the Arkansas Dept. of Health (county environmental health specialist). A soil/perc evaluation and engineered design are typically required; licensed installers perform the work and the system is inspected before backfill. |
| 🔌 EV Charger | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | Home EV charging (240V branch circuit + wall-mounted EVSE) requires an electrical permit and must meet the NEC (Article 625). Many municipalities fast-track residential EVSE. A load calculation and possible service upgrade are reviewed. |
| ⚡ Standby Generator | Conditional | city | Valuation-based; Little Rock minimum building-permit fee $50 (work over $5,000 or requiring inspection). | — | Generally allowed | A permanently installed standby generator requires mechanical and electrical permits (transfer switch, fuel gas/propane line). Setback, carbon-monoxide ventilation, and noise rules apply; some HOAs restrict generator placement. |
Frequently asked questions
Who issues building permits in Washington County, Arkansas?
Washington County — Planning Office is the permitting authority for Washington County. Permitting is split — cities issue for incorporated areas, the county for unincorporated areas. Start at the official portal linked above.
Do I go to the county or my city for a building permit in Washington County?
Permitting is split — cities issue for incorporated areas, the county for unincorporated areas.
What home projects need a permit in Washington County?
The same project types shown in the cheat-sheet above (ADU, deck, fence, shed, solar, and more) — rules follow Arkansas state law. Whether the county or your city issues it depends on your property's incorporation status.
How do I apply for a permit in Washington County?
Use the official permit portal linked above. Most offices accept online submissions; have your plans, site information, and contractor details ready before applying.