ADU (Accessory Dwelling Unit) Cost in Grand Rapids, MI (2026)
A ADU remodel in Grand Rapids typically costs between $56,500 and $282,000, with most homeowners spending around $122,000. Here's the local breakdown and what drives it.
Where the money goes
Typical split of a $122,000 ADU remodel in Grand Rapids.
What affects your Grand Rapids price
FAQ
How much does a ADU remodel cost in Grand Rapids?
In Grand Rapids, Michigan, a ADU remodel typically runs $56,500 to $282,000 in 2026, with most projects near $122,000. Local labor and material costs put Grand Rapids at about 94% of the US average.
What's included in that price?
A detached or attached secondary unit — foundation to finishes, plus utilities and permits.
Why is Grand Rapids different from the national average?
Construction labor rates, permit fees, and material delivery costs vary by metro. Grand Rapids's cost index is 0.94× the US baseline, which we apply to national ADU ranges.
How do I get an exact number for my project?
Use the free Reno estimate tool — describe your project (or upload a photo) and get a line-item estimate tied to your ZIP code, then share it with vetted local contractors.
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ADU (Accessory Dwelling Unit) cost in other cities
Other remodels in Grand Rapids
Ranges are 2026 market estimates based on national ADU costs adjusted by Grand Rapids's local construction cost index. Your actual cost depends on scope, finishes, and contractor. Get a project-specific estimate above.