Shed Permit Requirements in Yakima County, WA
Yakima County Building and Fire Safety Division issues building, electrical, mechanical, and plumbing permits for unincorporated Yakima County in eastern Washington. Note that the Town of Naches and 13 other incorporated cities (Yakima, Union Gap, Selah, Moxee, Tieton, Zillah, Toppenish, Wapato, Sunnyside, Grandview, Mabton, Granger, Harrah) run their own building offices; parcel verification is required for addresses inside incorporated limits. Codes in force: 2021 Washington State Residential Code (WSRC), 2021 WSBC, 2021 WSMC, 2021 WUPC, 2021 WSEC with Washington State Building Code Council amendments effective March 15, 2024. Design criteria: 110 mph wind, Seismic Design Category C or D-1 (local verification), Climate Zone 5B (eastern WA cold-dry), ground snow 25 psf at valley floor (parcels over 70 psf require engineering), frost depth 24 inches. All contractors must be registered with WA Department of Labor and Industries (L&I), bonded, and insured. Owner-builder permits allowed for primary residence with affidavit. Septic (OSS) via Yakima Health District at (509) 575-4040. Water rights and well permits via WA Department of Ecology. Accela online permit portal. Inspections direct line (509) 574-2370.
By Joey, Founder · Last verified April 22, 2026 · How we research →
When you don’t need a Shed permit in Yakima County
Accessory structures (sheds) 200 sq ft or less that are not used for living or storage of hazardous materials are exempt from a building permit per 2021 WSRC R105.2. County zoning setbacks still apply and the shed must be anchored against wind.
When you need a Shed permit in Yakima County
Sheds over 200 sq ft require a building permit from Yakima County Building and Fire Safety Division. Plans showing foundation (below the 24 inch frost depth if permanent), framing, and setback compliance are required.
Large accessory structures over 600 sq ft require a building permit with full construction plans and a 25 psf ground snow load design per 2021 WSRC Table R301.2(1). Owner-builder is allowed on a primary residence; otherwise a qualified contractor is typical.
What Makes Yakima County Different
Here's how Yakima County's shed rules stack up against the standard IRC baseline that most of the country follows.
Stricter Than the IRC
Sheds over 200 sq ft require a building permit from Yakima County Building and Fire Safety Division. Plans showing foundation (below the 24 inch frost depth if permanent), framing, and setback compliance are required.
Large accessory structures over 600 sq ft require a building permit with full construction plans and a 25 psf ground snow load design per 2021 WSRC Table R301.2(1). Owner-builder is allowed on a primary residence; otherwise a qualified contractor is typical.
More Lenient Than the IRC
Yakima County sets the square footage threshold at 200 sq ft, the IRC standard is 120 sq ft. That gives you more room before a permit kicks in.
Shed Permit Costs: Yakima County vs. Nearby
| City | Estimated Fee |
|---|---|
| Yakima County | N/A |
| Seattle | $120 – $600 |
| Spokane | $50 – $300 |
| Tacoma | $95 – $480 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Yakima County permit costs →
Zoning & HOA Considerations
Sheds may be subject to zoning setback requirements and lot coverage limits. Placement near property lines or in front yards may require zoning approval.
If you live in an HOA community: many HOAs restrict or prohibit outbuildings. Check your CC&Rs for rules on shed size, placement, materials, and appearance before purchasing or building.
Estimated Project Timeline in Yakima County
Here's a typical timeline for a shed project in Yakima County, WA:
Timeline is based on Yakima County's typical about 2 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Contact Yakima County's building department for current Shed permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Shed projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Yakima County can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Shed permits in Yakima County is about 2 weeks. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Shed Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Shed Guide →