Building permits · May 2026
Contra Costa County Building Permits
Monthly residential building permits for Contra Costa County, California — 205 units authorized in May 2026, 1,306 over the last 12 months — latest month +150% vs. a year earlier.
205
Units (latest month)
95
Single-family units
110
Multifamily (5+) units
$58,474,546
Reported value
Trailing 12 months: 1,306 units permitted · latest month +150% vs. a year earlier.
| Structure type | Units | Share |
|---|---|---|
| Single-family (1-unit) | 95 | 46.3% |
| 2-unit structures | 0 | 0.0% |
| 3–4 unit structures | 0 | 0.0% |
| Multifamily (5+ units) | 110 | 53.7% |
| All units | 205 | 100% |
Contra Costa County building permits — FAQ
How many building permits were issued in Contra Costa County?+
205 new residential units were authorized in Contra Costa County, California in May 2026, and 1,306 over the trailing 12 months (U.S. Census Building Permits Survey).
What share of Contra Costa County permits are multifamily?+
53.7% of Contra Costa 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.