PermitStack indexes 654,017 building permits issued in Cook County, Illinois, with 65,235 issued in the last 12 months alone. Search by address, contractor, category, and date via our free REST API.
Most common permit types issued in the last year.
Drill into the most common permit categories in Cook County.
The 10 most recent permits issued in Cook County, Illinois. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-05-29 | 63 | — | New construction | Recheck for new construction |
| 2026-05-29 | 61 | — | Other | VACANT PARCEL. RECHECK 2027 FOR NEW RES. |
| 2026-05-29 | 81 | — | New construction | Recheck for new construction |
| 2026-05-29 | 64 | — | New construction | Recheck for new construction |
| 2026-05-29 | 20262022286260058 | — | Other | EXCAVATE TRENCH UP TO 45FT TO CARRY SUMP PUMP DISCHARGE/DOWNSPOUT DRAINAGE AWAY FR... |
| 2026-05-29 | 20262022286260057 | — | Other | INSTALLATION OF A BACKYARD PATIO AREA USING CONCRETE PAVERS/STONE SLABS AND DECORA... |
| 2026-05-28 | 20262022286260056 | — | Electrical | REMOVE AND REPLACE ELECTRICAL PANEL PUMP ROOM -STALICA PARK , CURRENTLY A 6 CIRCU... |
| 2026-05-28 | 20262022286260055 | — | Electrical | PER REQUEST FROM RICK WE WILL INSTALL A QUAD ELECTRICAL RECEPTACLE NEW DATA RACK,... |
| 2026-05-27 | 20262022286260053 | — | Other | REPLACEMENT OF AIR-HANDLER UNIT FOR AIR-CONDITIONING SYSTEM. |
| 2026-05-27 | 20263922359290041 | — | Other | RESTORATION |
Query Cook County, Illinois permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Cook County permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Cook%20County&state=IL&issued_after=2026-04-01"
Related coverage in Illinois and nationwide.
We ingest data directly from the official Cook County open data portal (Tyler Data & Insights (Socrata)) daily. This is the same source used by the city's own public dashboards, normalized into a consistent JSON schema across our U.S. jurisdictions.
Our automated ingestion runs daily at 03:00 UTC. The latest permit in our database for Cook County, Illinois was issued on May 29, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 100 requests per day, enough to search and filter Cook County permits interactively. Sign up for a free API key to get started.
Yes. Paid plans support CSV export and periodic webhooks for changed permits.
Free tier covers 100 requests per day. No credit card required.
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