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
This is the physical process of building a secondary unit, which requires coordinating contractors, electricians, and plumbers. You need professional construction services when you are ready to break ground on your design. Costs are driven by the complexity of the foundation, interior finish levels, and site grading requirements. Exact pricing confirmed free on the call.
Frequently asked in West Valley City
What are the rules for accessory dwelling units in West Valley City?
How do I find an accessory dwelling unit contractor in West Valley City?
What financing options are available for accessory dwelling units?
Can I build a detached accessory dwelling unit in West Valley City?
What does ADU construction involve?
Are there affordable accessory dwelling units available?
What is the cost of an ADU builder in West Valley City?
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, Smokey Ridge, Westridge, Summit Ridge, The Meadows — and every surrounding area.
Areas we serve
Browse by state, then city.
