Michigan · MI
Michigan residential & ADU permit data
Local zoning across the Great Lakes State
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)
Jurisdictions we cover
DetroitGrand Rapids
Why Igni for Michigan
Major markets in Detroit and the fast-growing Grand Rapids metro
Live Detroit permit data, sourced from official open data
Local-first permit intelligence where cities set their own rules
Start tracking Michigan permits
Fresh, filterable residential and ADU permit leads — delivered before your competitors even know.
Sourced live from the City of Detroit open-data portal (BSEED building permits; public records).
Informational only, not legal advice. Housing law changes — verify current statutes before relying on this.