ADU Locator

1 Best ADU Builders in Farmington Hills, Michigan

Verified ADU contractors and builders in Farmington Hills, MI

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J.B. Donaldson Company

Specializing in accessory dwelling unit construction throughout Farmington Hills and the surrounding area, this experienced contractor helps homeowners add functional living spaces to their properties. From design consultation through final completion, they manage every aspect of ADU building to maximize your property's potential.

+1 248-344-9045
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Frequently Asked Questions — ADU Builders in Farmington Hills

How much does it cost to hire an ADU builder in Farmington Hills?

ADU construction costs in Farmington Hills, Michigan vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Farmington Hills to get accurate quotes for your specific project.

How long does it take to build an ADU in Farmington Hills?

In Farmington Hills, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on Michigan local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Farmington Hills?

Yes, a building permit is required for ADU construction in Farmington Hills, Michigan. Your ADU builder will typically handle the permit application as part of their service. Michigan has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Farmington Hills?

Common ADU types in Farmington Hills include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Farmington Hills ADU builder can advise on what's allowed on your specific parcel.