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
An accessory dwelling unit is a secondary house or apartment that shares the building lot of a larger, primary home. It is a flexible housing solution used for aging parents, adult children, or generating rental income. The term covers everything from garage conversions to new detached cottages. Understanding this definition helps you determine if your property has the potential to add living space. Exact pricing confirmed free on the call.
Frequently asked in Nampa
What are the best accessory dwelling unit options for my Nampa home?
What accessory dwelling unit services are available in Nampa, Idaho?
Can I find an accessory dwelling unit for rent in Nampa?
What is the typical ADU cost in Nampa, Idaho?
What is involved in ADU construction in Nampa?
Are prefabricated accessory dwelling units a good choice for Nampa?
What makes an accessory dwelling unit 'best' in Nampa?
Also serving nearby: Meridian · Boise City · Bend · Spokane Valley · Spokane
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Nampa — population 114,268; about 3,286 residents per square mile across 34.8 sq mi. ZIP codes covered include 83651, 83652, 83653, 83686, 83687.
Neighborhoods served in Nampa: Downtown Nampa, Lakeview, Park Ridge, Maplewood — and every surrounding area.
Areas we serve
Browse by state, then city.
