PERMIT RECORD · ILLINOIS
Illinois building permit data
3 markets with normalized permit records in Illinois, covering 823,453 permits and 40,363 companies.
Markets on record
| Market | Permits | Companies | Years |
|---|---|---|---|
| Chicago | 795,029 | 35,513 | 2006–2026 |
| Normal | 16,072 | 1,419 | 2021–2026 |
| Naperville | 12,352 | 3,431 | 2021–2026 |
The wider picture
The Census Building Permits Survey lists 995 permit-issuing authorities in Illinois, which together reported 18,551 residential units in 2025. We normalize a market only after checking that its published records separate trades and name contractors. All Illinois authorities →