Chicago building & ADU permits
Recent permit activity, updated continuously.
Chicago is the third-most populous city in the United States and runs its own ADU ordinance in a state with no statewide mandate. Chicago's mature data portal exposes no single address or ZIP column, so Igni reverse-geocodes permits from their coordinates and infers ADU activity from the work description.
Igni is tracking 4,667 residential and building permits in Chicago, IL — including 18 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 60611. The most recent filing Igni tracked was Jul 31, 2026. All records come from Chicago Data Portal (Socrata), an official government open-data feed, and are refreshed continuously.
4667
Permits tracked
18
ADU permits
53
Distinct ZIP codes
Jul 31, 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 |
|---|---|---|---|---|
| 60609 | Other | — | $0 | Jul 31, 2026 |
| 60647 | Residential | — | $35,000 | Jun 23, 2026 |
| 60018 | Other | — | $88,200 | Jul 31, 2026 |
| 60619 | Other | — | $10,500 | Jul 31, 2026 |
| 60620 | Other | — | $48,600 | May 4, 2026 |
| 60608 | Commercial | — | — | Jul 31, 2026 |
| 60625 | Other | — | $3,400 | Jul 30, 2026 |
| 60608 | Residential | — | $100 | Jun 22, 2026 |
| 60625 | Other | — | $11,000 | Jul 29, 2026 |
| 60613 | Other | — | — | Jul 29, 2026 |
| 60629 | Other | — | $1,700 | Jul 30, 2026 |
| 60641 | Other | — | $170,000 | Jun 26, 2026 |
| 60636 | Residential | — | $5,000 | Jul 30, 2026 |
| 60613 | Other | — | — | Jul 31, 2026 |
| 60629 | Other | — | $14,000 | Jul 19, 2026 |
| 60617 | Other | — | $10,500 | Jul 31, 2026 |
| 60651 | Other | — | $75,000 | Apr 30, 2025 |
| 60630 | Other | — | $20,000 | May 29, 2026 |
| 60620 | Other | — | $1,500 | Jul 31, 2026 |
| 60607 | Other | — | $15,000 | Jul 16, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Housing law — Illinois
Accessory dwelling units in Illinois are regulated locally; there is no statewide ADU mandate, with Chicago running its own ADU ordinance.
Illinois has no statewide upzoning law; residential density is set by local zoning.
Data source
Sourced from Chicago Data Portal (Socrata). Public records (City of Chicago Terms of Use).
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Chicago permit records into leads.
Chicago permit data — FAQ
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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.