Building permits · May 2026
Illinois Building Permits
Monthly residential building permits for Illinois from the U.S. Census Building Permits Survey — 1,118 units authorized in May 2026, 20,047 over the last 12 months.
| Structure type | Units | Share |
|---|---|---|
| Single-family (1-unit) | 918 | 82.1% |
| 2-unit structures | 28 | 2.5% |
| 3–4 unit structures | 38 | 3.4% |
| Multifamily (5+ units) | 134 | 12.0% |
| All units | 1,118 | 100% |
Building permits across the U.S.
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Illinois permits by county
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By units permitted in the last 12 months.
Illinois building permits — FAQ
How many building permits were issued in Illinois?+
1,118 new residential housing units were authorized in Illinois in May 2026, and 20,047 over the trailing 12 months, per the U.S. Census Building Permits Survey.
Is homebuilding rising or falling in Illinois?+
In May 2026, Illinois permitted units were down 49% versus the same month a year earlier. Over the trailing 12 months, 20,047 units were authorized.
What share is multifamily?+
17.9% of Illinois's May 2026 permitted units were in multifamily (2+ unit) structures; 82.1% were single-family.