Cost to build accessory dwelling unit — West Valley City, UT
Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
Building an ADU involves costs for permits, site prep, foundation, framing, plumbing, and electrical work. Prices fluctuate based on whether you choose a custom design or a pre-planned layout, as well as the complexity of connecting to existing city utilities. Exact pricing confirmed free on the call.
Frequently asked in West Valley City
What is the estimated cost for an accessory dwelling unit in West Valley City?
Are modular ADUs a good choice for West Valley City?
Can I rent out my accessory dwelling unit in West Valley City?
What does accessory dwelling unit mean?
An accessory dwelling unit (ADU) is a secondary, independent living space on a single-family home lot. It includes its own kitchen, bathroom, and entrance. ADUs can be attached to the main house, like a basement apartment, or built as a separate structure in the backyard. They offer flexible housing solutions for family members or as rental income properties.
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What is an ADU unit?
An ADU unit refers to a fully functional, independent living space that is secondary to a primary dwelling on the same property. It is designed to house one or more people and typically includes a bedroom, bathroom, and kitchen facilities. ADUs are becoming increasingly popular for their flexibility in providing housing for family members or generating rental income.
Can my home have an in-law suite?
Also serving nearby: West Jordan · Salt Lake City · Sandy · Lehi · Orem
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of West Valley City — population 134,470; about 3,753 residents per square mile across 35.8 sq mi. ZIP codes covered include 84119, 84120, 84128.
Neighborhoods served in West Valley City: Hunter, Granger, West Kearns, Magna, Lakewood — and every surrounding area.
Areas we serve
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