Adu building — Ann Arbor, MI
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
Frequently asked in Ann Arbor
What is an accessory dwelling unit contractor in San Diego?
What is a detached accessory dwelling unit in Ann Arbor?
What ADU company should I choose in Ann Arbor?
What is involved in ADU construction in Ann Arbor?
How do I find accessory dwelling unit builders in Ann Arbor?
What is the cost to build an accessory dwelling unit in Ann Arbor?
The cost to build an accessory dwelling unit in Ann Arbor depends on several factors. These include the unit's size, the complexity of its design, and the quality of finishes chosen. Site preparation, foundation requirements, and necessary utility upgrades also contribute to the expense. A detailed quote will break down these components for your specific project.
What is the accessory dwelling unit permit process in Ann Arbor?
Also serving nearby: Livonia · Dearborn · Detroit · Warren · Sterling Heights
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Ann Arbor — population 119,381; about 4,213 residents per square mile across 28.3 sq mi. ZIP codes covered include 48103, 48104, 48105, 48106, 48107, 48108, 48109, 48113.
Neighborhoods served in Ann Arbor: Burns Park, South University, Kerrytown, Maplewood, North Maple — and every surrounding area.
Areas we serve
Browse by state, then city.