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Michigan · MICoverage expanding

Michigan residential & ADU permit data

Local zoning across the Great Lakes State

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Housing law

Accessory dwelling units in Michigan are regulated locally; with no statewide ADU mandate, rules vary by city and county.

Michigan has no statewide upzoning law; residential density is governed by local zoning.

Local zoning (no statewide mandate)

Major permit jurisdictions

DetroitGrand Rapids

Why Igni for Michigan

Major markets in Detroit and the fast-growing Grand Rapids metro

Local-first permit intelligence where cities set their own rules

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Fresh, filterable residential and ADU permit leads — delivered before your competitors even know.

Permit data via municipal open-data portals and public records where available.

Informational only, not legal advice. Housing law changes — verify current statutes before relying on this.