Building permits · May 2026
Alameda County Building Permits
Monthly residential building permits for Alameda County, California — 137 units authorized in May 2026, 3,027 over the last 12 months — latest month -46.3% vs. a year earlier.
137
Units (latest month)
76
Single-family units
45
Multifamily (5+) units
$42,909,978
Reported value
Trailing 12 months: 3,027 units permitted · latest month -46.3% vs. a year earlier.
| Structure type | Units | Share |
|---|---|---|
| Single-family (1-unit) | 76 | 55.5% |
| 2-unit structures | 16 | 11.7% |
| 3–4 unit structures | 0 | 0.0% |
| Multifamily (5+ units) | 45 | 32.8% |
| All units | 137 | 100% |
Alameda County building permits — FAQ
How many building permits were issued in Alameda County?+
137 new residential units were authorized in Alameda County, California in May 2026, and 3,027 over the trailing 12 months (U.S. Census Building Permits Survey).
What share of Alameda County permits are multifamily?+
44.5% of Alameda 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.