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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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.