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
Cities we cover in Michigan
Live dataExplore live, sourced permit activity for each Michigan jurisdiction.
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
Michigan ADU & permit data — FAQ
Does Michigan allow accessory dwelling units (ADUs)?
Accessory dwelling units in Michigan are regulated locally; with no statewide ADU mandate, rules vary by city and county.
What is Michigan's missing-middle / upzoning law?
Michigan has no statewide upzoning law; residential density is governed by local zoning.
Where does Igni get Michigan permit data?
Sourced live from the City of Detroit open-data portal (BSEED building permits; public records).
Which Michigan cities does Igni cover?
Igni has live permit coverage for Detroit in Michigan, with more jurisdictions expanding.
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.