Solar permits

Solar Permits in Cook County

Free weekly solar building-permit activity for Cook County, IL, computed from official city permit portals.

Solar permits this period
1
Share of all permits
2.0%
Trend
-97% week-over-week

Weekly solar trend: Aug 14: 48 · Aug 21: 46 · Aug 28: 35 · Sep 4: 3 · Sep 11: 12 · Sep 18: 9 · Sep 25: 6 · Oct 2: 0 · Oct 9: 0 · Oct 16: 0 · Oct 23: 0 · Oct 30: 1

Latest period through 2026-11-05, vs. 30 in the prior period, out of 50 total Cook County permits.

Subscribers also unlock the top ZIP codes and the most-active solar contractors for Cook County, see the $39/mo dashboard.

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Frequently asked questions

How active are solar permits in Cook County?

Permit Ledger tracks every solar building permit filed in Cook County each week and shows the count, the week-over-week trend, and solar permits' share of all Cook County permits, computed from official city permit portals, never estimated.

Can I get Cook County solar contractor leads?

The free view shows solar permit volume and trend. The $39/mo dashboard adds the top ZIP codes and the most-active solar contractors in Cook County, refreshed weekly.

How often are Cook County solar permit numbers updated?

Weekly. Every solar figure on this page refreshes after each weekly pull from official city permit portals.