Access real-time new construction permit data from Cook County, IL. These permits represent ground-up residential and commercial construction — the most consequential permits for real estate market analysis.
Showing the 10 most recent new construction permits issued in Cook County, IL. Access all 678 permits from the last year via the API.
| Issued | Address | Value | Status | Contractor |
|---|---|---|---|---|
| 2026-05-29 | — | — | UNKNOWN | — |
| 2026-05-29 | — | — | UNKNOWN | — |
| 2026-05-29 | — | — | UNKNOWN | — |
| 2026-05-26 | — | — | UNKNOWN | — |
| 2026-05-26 | — | — | UNKNOWN | — |
| 2026-05-26 | — | — | UNKNOWN | — |
| 2026-04-29 | 15783 127TH ST | $20.5M | FILED | ROBERT CHEJLAVA |
| 2026-04-27 | 8510 GOLF RD | $100K | FILED | WHO BREW IL III, LLC |
| 2026-03-31 | 7815 W 66TH ST | — | FILED | AJ CONSTRUCTION |
| 2026-03-30 | 327 S HOME AVE | $694K | FILED | LUKASZCZYK |
Customer profile: real estate investors, building materials suppliers, and construction market analysts.
Monitor new-build activity for investment analysis, supply chain planning, and competitor tracking. New construction permits are the canonical leading indicator of housing starts.
Query Cook County, IL new construction permits directly with a single HTTP call:
curl "https://api.permit-stack.com/v1/permits/search?city=Cook%20County&state=IL&category=NEW_CONSTRUCTION" \ -H "X-API-Key: pk_your_key"
Or use the official Python SDK: pip install permitstack
PermitStack ingests permits from Cook County, IL's official open data portal daily at 3 AM UTC. Most new construction permits appear within 24-48 hours of issuance.
Yes. The API supports filtering by zip code, date range, contractor name, estimated value, and more. See the full API documentation for query parameters.
Yes. Building permits including new construction permits are public records maintained by Cook County, IL's building department. PermitStack normalizes this open data into a clean, consistent API.
Our customers include real estate investors, building materials suppliers, and construction market analysts. Monitor new-build activity for investment analysis, supply chain planning, and competitor tracking. New construction permits are the canonical leading indicator of housing starts.
Data source: Official Cook County, IL open data portal. Last updated: 2026-05-29.