Adu estimate — 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
An ADU estimate provides a preliminary look at what your secondary unit might cost based on the size and complexity of your plans. Variables such as foundation type, square footage, and interior material quality shift the total investment up or down. You need an estimate early in the process to help determine if your vision aligns with your available budget. Exact pricing confirmed free on the call.
Frequently asked in Ann Arbor
What is the process for an accessory dwelling unit permit in Ann Arbor?
What ADU services are available in Ann Arbor?
Where can I find an ADU near me in Ann Arbor?
Can I build an accessory dwelling unit for rent in Ann Arbor?
What is a prefab ADU in Ann Arbor?
Are there accessory dwelling unit massachusetts regulations that apply to Ann Arbor?
Who are accessory dwelling unit companies 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: Downtown Ann Arbor, Kerrytown, Geddes Heights, Old West Side, Burns Park — and every surrounding area.
Areas we serve
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