Detroit building & ADU permits
Recent permit activity, updated continuously.
Detroit is Michigan's largest city, setting ADU rules locally in a state with no statewide mandate. Igni sources Detroit permits from the city's BSEED open data under its GO DATA policy, normalizing the free-text use column into Igni's residential, commercial, and ADU categories.
Igni is tracking 2,884 residential and building permits in Detroit, MI — including 3 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 48221. The most recent filing Igni tracked was Sep 17, 2026. All records come from data.detroitmi.gov — BSEED (ArcGIS), an official government open-data feed, and are refreshed continuously.
2884
Permits tracked
3
ADU permits
28
Distinct ZIP codes
Sep 17, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 48235 | Residential | — | $4,200 | Sep 8, 2026 |
| 48224 | Other | — | $2,000,000 | Aug 25, 2026 |
| 48215 | Residential | — | $195,000 | Aug 14, 2026 |
| 48228 | Residential | — | $1,075 | Sep 15, 2026 |
| 48206 | Residential | — | $5,000 | Jul 2, 2026 |
| 48238 | Residential | — | $31,700 | Sep 17, 2026 |
| 48228 | Residential | — | $4,938 | Sep 11, 2026 |
| 48219 | Residential | — | $18,000 | Sep 1, 2026 |
| 48226 | Other | — | $15,000 | Aug 12, 2026 |
| 48234 | Residential | — | $4,675 | Sep 10, 2026 |
| 48202 | Residential | — | $96,000 | Jul 31, 2026 |
| 48225 | Commercial | — | $3,000 | Aug 20, 2026 |
| 48235 | Residential | — | $15,500 | Sep 17, 2026 |
| 48202 | Residential | — | $150,000 | Jul 28, 2026 |
| 48211 | Residential | — | $2,000 | Sep 17, 2026 |
| 48227 | Residential | — | $21,942 | Sep 17, 2026 |
| 48227 | Residential | — | $4,728 | Sep 15, 2026 |
| 48205 | Residential | — | $2,500 | Sep 17, 2026 |
| 48203 | Residential | — | $15,000 | Sep 17, 2026 |
| 48215 | Residential | — | $18,437 | Feb 25, 2026 |
Top ZIP codes by recent activity
Housing law — Michigan
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.
Data source
Sourced from data.detroitmi.gov — BSEED (ArcGIS). Public records (Detroit GO DATA, EO 2015-2).
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Detroit permit records into leads.
Detroit permit data — FAQ
Where does Igni get Detroit permit data?
How fresh is Detroit permit data?
Does Detroit allow accessory dwelling units (ADUs)?
Get permit leads — Detroit
Fresh, filterable residential and ADU permit leads from Detroit — delivered before your competitors even know.
Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.