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 8,982 residential and building permits in Chicago, IL — including 34 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 60614. The most recent filing Igni tracked was Sep 17, 2026. All records come from Chicago Data Portal (Socrata), an official government open-data feed, and are refreshed continuously.
8982
Permits tracked
34
ADU permits
51
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 |
|---|---|---|---|---|
| 60602 | Other | — | $76,135 | Sep 17, 2026 |
| 60641 | Other | — | $240,000 | Aug 6, 2026 |
| 60606 | Residential | — | — | Sep 11, 2026 |
| 60636 | Other | — | $33,940 | Aug 19, 2026 |
| 60644 | Residential | — | $34,870 | Sep 16, 2026 |
| 60606 | Other | — | $8,000 | Sep 16, 2026 |
| 60634 | Other | — | $23,000 | Sep 16, 2026 |
| 60609 | Residential | — | $10,000 | Sep 14, 2026 |
| 60643 | Residential | — | $25,000 | Sep 9, 2026 |
| 60620 | Other | — | — | Sep 16, 2026 |
| 60638 | Other | — | $27,230 | Aug 24, 2026 |
| 60638 | Other | — | $16,000 | Sep 2, 2026 |
| 60617 | Other | — | $13,000 | Sep 15, 2026 |
| 60644 | Residential | — | $42,820 | Sep 16, 2026 |
| 60656 | Other | — | $5,040 | Sep 17, 2026 |
| 60655 | Other | — | $10,260 | Sep 9, 2026 |
| 60620 | Other | — | $10,000 | Sep 16, 2026 |
| 60620 | Residential | — | $30,322 | Jul 17, 2026 |
| 60018 | Other | — | $1,000,000 | Sep 17, 2026 |
| 60628 | Other | — | — | Jul 29, 2026 |
Top ZIP codes by recent activity
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).
Nearby cities — Illinois
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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Does Chicago allow accessory dwelling units (ADUs)?
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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.