ADU Regulations in Yakima, Washington
Located in Yakima County in Central Washington, the city permits ADUs in low-density residential zones. Yakima requires owner occupancy and off-street parking, with site plan review for all new ADU construction.
Below is a summary of the key zoning rules applicable to Accessory Dwelling Units in Yakima as of 2026. Regulations are governed by Washington's HB 1337 (2023) which limits local ADU restrictions statewide.
| Regulation | Requirement |
|---|---|
| Maximum Size | 1,000 sq ft |
| Property Setbacks | 5 ft rear, 5 ft side |
| Extra Parking Required | Required (1 space) |
| Owner Occupancy | Required |
Additional Local Requirements for Yakima
- ADU allowed in low-density residential zones
- Minimum 200 sq ft
- Site plan review required
- Owner must live on property
📥 Download the Complete Yakima ADU Cheat Sheet
Get the step-by-step permit checklist, official government forms, direct planning department contacts, and estimated fees — all in one printable PDF for Yakima, Washington.
Download the Complete Yakima ADU Cheat Sheet — $12Frequently Asked Questions About ADUs in Yakima
Can I build an ADU in Yakima?
Yakima permits ADUs in low-density residential zones. Owner occupancy is a firm requirement.
How big can my ADU be in Yakima?
What is the maximum ADU size allowed in Yakima? ADUs in Yakima can be up to 1,000 square feet, subject to the property's zoning and lot coverage limits. Always confirm the exact allowed size with the Yakima planning department before designing your project.
What about setbacks and other requirements in Yakima?
What are the setback requirements for an ADU in Yakima? ADUs in Yakima generally require setbacks of 5 ft rear, 5 ft side. California state law (AB 68) limits local setback requirements to 4 feet for existing structures, but always verify with local zoning.
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