Building permits · May 2026
Cook County Building Permits
Monthly residential building permits for Cook County, Illinois — 91 units authorized in May 2026, 5,615 over the last 12 months — latest month -87.9% vs. a year earlier.
91
Units (latest month)
71
Single-family units
5
Multifamily (5+) units
$42,247,533
Reported value
Trailing 12 months: 5,615 units permitted · latest month -87.9% vs. a year earlier.
| Structure type | Units | Share |
|---|---|---|
| Single-family (1-unit) | 71 | 78.0% |
| 2-unit structures | 2 | 2.2% |
| 3–4 unit structures | 13 | 14.3% |
| Multifamily (5+ units) | 5 | 5.5% |
| All units | 91 | 100% |
Cook County building permits — FAQ
How many building permits were issued in Cook County?+
91 new residential units were authorized in Cook County, Illinois in May 2026, and 5,615 over the trailing 12 months (U.S. Census Building Permits Survey).
What share of Cook County permits are multifamily?+
22.0% of Cook County's May 2026 permitted units were in multifamily (2+ unit) buildings.
Where does this data come from?+
Figures come from the U.S. Census Bureau's Building Permits Survey, a monthly census of permit-issuing jurisdictions. PUMSdata is independent and not affiliated with the Census Bureau.