Wildfire Zones: Castro Valley vs Livermore
How do wildfire zones rules compare between Castro Valley, CA and Livermore, CA?
Castro Valley and Livermore have similar restriction levels.
Castro Valley, CA
Alameda County
Much of east Alameda County including the Oakland Hills, Castro Valley, and Sunol foothills is designated Very High Fire Hazard Severity Zone by CAL FIRE, triggering strict defensible space rules.
View full Castro Valley rules →Livermore, CA
Alameda County
Livermore's south and east foothills, including areas near Del Valle and Sycamore Grove, are mapped as Very High Fire Hazard Severity Zone by CAL FIRE.
View full Livermore rules →Key Facts Comparison
| Fact | Castro Valley | Livermore |
|---|---|---|
| Zone designation | CAL FIRE VHFHSZ | - |
| Defensible space | PRC 4291, 100 feet | - |
| Building standard | CBC Chapter 7A | - |
| Disclosure | CA Civil Code 1103 | - |
| Historic fire | 1991 Oakland Hills Firestorm | - |
| Zone Areas | - | South/east foothills |
| Designation | - | VHFHSZ (LRA) + SRA |
| Construction | - | CBC Chapter 7A |
| Roofing | - | Class A required |
| Defensible Space | - | PRC §4291 100 ft |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
How do I find out if my property is in a VHFHSZ?
Use the CAL FIRE Fire Hazard Severity Zone Viewer online or contact the Alameda County Fire Department to confirm your parcel status.
What are the insurance implications?
VHFHSZ properties face higher premiums, non-renewals, and may need the California FAIR Plan; completing home hardening can help qualify for the Safer From Wildfires program discounts.
Livermore FAQ
How do I know if my Livermore home is in a VHFHSZ?
Use CAL FIRE's FHSZ viewer or contact LPFD. Most central and northern Livermore neighborhoods are outside the zone; hillside and rural parcels are typically within it.
Does WUI construction apply to my remodel?
WUI requirements under CBC Chapter 7A apply to new construction, additions, and some reroofs in VHFHSZ. Livermore Building Division confirms trigger thresholds at permit intake.
Compare other topics
See how Castro Valley and Livermore compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool