California uniformly classifies and maps Fire Hazard Severity Zones statewide, with mandatory building, disclosure, and defensible space rules tied to zone designations.
Government Code Section 51178 and Public Resources Code Section 4202 require the State Fire Marshal and CAL FIRE to designate Fire Hazard Severity Zones (Moderate, High, Very High) across both State Responsibility Areas and Local Responsibility Areas. Local agencies must adopt the state maps within 120 days of release and cannot reduce zone classifications. Properties in Very High zones trigger Chapter 7A ignition-resistant construction standards in the California Building Code, AB 38 home-hardening disclosures at sale, and Public Resources Code 4291 defensible space duties. The 2024-2025 statewide map updates apply to all jurisdictions.
Failure to comply with zone-based building, disclosure, or vegetation rules can result in stop-work orders, denial of insurance, and civil penalties.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
San Ramon, CA
San Ramon prohibits amplified music audible beyond the property line of the source, with stricter enforcement during quiet hours (10 PM-7 AM). Outdoor events...
San Ramon, CA
Construction in San Ramon is permitted Monday-Friday 7:30 AM to 5:30 PM and Saturday 9:00 AM to 5:00 PM. No construction is allowed on Sundays or city-recogn...
San Ramon, CA
San Ramon prohibits long-term on-street parking of recreational vehicles, boats, trailers, and oversized vehicles under California Vehicle Code Section 22507...
San Ramon, CA
San Ramon permits 6-foot fences in side and rear yards and 3.5-foot (42-inch) fences in front yards. Corner lots have additional sight-triangle restrictions ...
San Ramon, CA
Hedges in San Ramon are regulated similarly to fences for sight-line purposes. Front yard hedges must not exceed 3.5 feet within the front setback, and corne...
San Ramon, CA
San Ramon borders extensive East Bay Regional Park District open space (Las Trampas, Bollinger Canyon, Iron Horse Trail) hosting deer, coyotes, mountain lion...
Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle wildfire zones.
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