City building permits · May 2026
Walnut Building Permits
Monthly residential building permits for Walnut, California — 10 units in May 2026, 122 over the last 12 months — latest month -47.4% vs. a year earlier.
10
Units (latest month)
5
Single-family units
5
Multifamily (5+) units
$2,280,286
Reported value
Trailing 12 months: 122 units permitted · latest month -47.4% vs. a year earlier.
| Structure type | Units | Share |
|---|---|---|
| Single-family (1-unit) | 5 | 50.0% |
| 2-unit structures | 0 | 0.0% |
| 3–4 unit structures | 0 | 0.0% |
| Multifamily (5+ units) | 5 | 50.0% |
| All units | 10 | 100% |
Walnut building permits — FAQ
How many building permits were issued in Walnut, California?+
10 new residential units were authorized in Walnut in May 2026, and 122 over the trailing 12 months, per the Census Building Permits Survey.
What types of housing is Walnut permitting?+
In May 2026, 5 single-family and 5 units in 5+ unit buildings were permitted — 50.0% of the total was multifamily.
Why might Walnut's numbers be zero some months?+
Permit activity is lumpy at the city level, and small jurisdictions may report to the Census with a lag. Zero in a month means no permits were reported, not necessarily no construction interest.