ADU Impact Fees: Grand Rapids vs Kentwood
How do adu impact fees rules compare between Grand Rapids, MI and Kentwood, MI?
Grand Rapids, MI
Kent County
Michigan is one of the most impact-fee-restrictive states in the country. The Michigan Supreme Court's decision in Bolt v. City of Lansing, 459 Mich. 152 (1998), held that municipal exactions imposed on new development must qualify as 'fees' (regulatory and proportional) rather than disguised 'taxes,' and Michigan has no statewide impact-fee enabling statute. Grand Rapids charges no traditional parks, transportation, schools, or public-safety impact fees on ADU construction. Costs are limited to building permit fees, plan review, and utility connection charges through the Environmental Services Department.
View full Grand Rapids rules →Kentwood, MI
Kent County
No data available yet for Kentwood.
Key Facts Comparison
| Fact | Grand Rapids | Kentwood |
|---|---|---|
| Impact Fee Authority | None statewide in Michigan | - |
| Key Precedent | Bolt v. City of Lansing (1998) | - |
| Building Permit Code | Michigan Construction Code Act PA 230 of 1972 | - |
| Utility Connection | ESD water/sewer tap fees | - |
| School Impact Fees | Not authorized (Proposal A of 1994) | - |
Highlighted rows indicate differences between cities.
Grand Rapids FAQ
Does Grand Rapids charge impact fees on a new ADU?
No. Michigan has no statewide impact fee enabling statute, and the Michigan Supreme Court's Bolt v. Lansing decision (1998) sharply limited municipal authority to impose development charges that are not voluntary and proportional regulatory fees. Grand Rapids has not adopted parks, transportation, schools, or public-safety impact fees. Costs are limited to building/electrical/plumbing/mechanical permit fees under the Michigan Construction Code Act and Environmental Services Department water/sewer tap charges if new service is installed.
Are there school or parks fees on an ADU?
No. Michigan does not authorize school, parks, or transportation impact fees on residential construction. Grand Rapids Public Schools and surrounding districts are funded through the Michigan State School Aid Fund under Proposal A of 1994 plus local property tax mill rates that equalize per-pupil funding statewide. New ADU construction contributes to schools and city services through ongoing property taxes on the increased assessed value rather than upfront impact fees.
Kentwood FAQ
No FAQs available.
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