Accessory dwelling unit construction cost — Yakima, WA
Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.
About this service
The cost of building an ADU depends on your choice of materials, the square footage, and whether you are doing a garage conversion or a new detached build. Site access and utility upgrades also play a big role in the final bill. Exact pricing confirmed free on the call.
Frequently asked in Yakima
What are homes with in-law suites?
Homes with in-law suites feature a self-contained living space separate from the main residence. They are perfect for accommodating family members or generating rental income. This addition significantly enhances a property's utility and value. Discuss your ADU options with a pro.
What is an ADU estimate?
What is the best accessory dwelling unit for my needs?
Who are accessory dwelling unit builders near me in Washington?
What is ADU building?
What is an accessory dwelling unit for rent?
How do I get an ADU quote?
Also serving nearby: Kent · Renton · Federal Way · Bellevue · Tacoma
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Yakima — population 96,750; about 3,472 residents per square mile across 27.9 sq mi. ZIP codes covered include 98901, 98902, 98903, 98904, 98907, 98908, 98909.
Neighborhoods served in Yakima: Yakima Greenway, Downtown Yakima, West Valley, Union Gap, Ahtanum — and every surrounding area.
Areas we serve
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