Weekly permit insights

Cook County Building Permits

Free weekly building-permit insights for Cook County, IL, computed from official city permit portals, 883 permits filed in the latest period (through 2026-09-14), with the week-over-week trend and the busiest renovation, solar, pool, and remodel categories.

Updated weekly · latest data through 2026-09-14

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Permits this period
883
Trades tracked
6
Period ending
2026-09-14

Weekly trend: Jun 23: 1,164 · Jun 30: 529 · Jul 7: 585 · Jul 14: 498 · Jul 21: 579 · Jul 28: 383 · Aug 4: 67 · Aug 11: 93 · Aug 18: 305 · Aug 25: 319 · Sep 1: 29 · Sep 8: 159

Permits by trade in Cook County

TradeThis periodShare
Roofing13014.7%
Plumbing384.3%
HVAC192.2%
Solar171.9%
Electrical151.7%
Pool & Spa70.8%
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Compare Cook County with weekly building-permit activity in nearby and same-state markets.

Chicago, IL Columbia, IL Des Plaines, IL East Peoria, IL Elmhurst, IL Glen Carbon, IL

Frequently asked questions

How often is Cook County building permit data updated?

Weekly. Permit Ledger pulls Cook County's building permits from official city permit portals every week, then recomputes the total filed, the week-over-week trend, and the busiest permit and trade categories.

Is Cook County building permit data free?

Yes. The weekly Cook County overview is free to browse, total permits filed, the trend, and the top permit and trade types. The $39/mo dashboard adds the top ZIP codes, the most-active contractors, and a Monday email.

What types of permits does Permit Ledger track in Cook County?

Renovation, remodel, addition, and repair permits, plus solar and pool/spa trade permits. Each permit is classified into a single clear category, so you can scan the residential and trade work most useful to contractors, suppliers, and investors.

Where does Cook County's permit data come from?

Official public records from official city permit portals, normalized into one consistent weekly format so every city reads the same way.

Need the raw permit records for Cook County? Permit data feeds.