Fire Regulations in Napa, CA (2026)
2 verified fire regulations for Napa, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Brush Clearance
Napa property owners must maintain 100 feet of defensible space around every habitable structure under California Public Resources Code Section 4291 (State Responsibility Area) and Government Code Section 51182 (Local Responsibility Area Very High Fire Hazard Severity Zone). Vegetation management is also enforced through Napa Municipal Code weed-abatement provisions. The Napa Fire Department conducts annual defensible-space inspections.
Napa, CA Defensible Space & Brush Clearance
Some RestrictionsCal. Pub. Res. Code Section 4291 (Defensible Space)
Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line ... The amount of fuel modification necessary shall consider the flammability of the structure as affected by building material, building standards, location, and type of vegetation. Fuels shall be maintained and spaced in a condition so that a wildfire would be un...
Wildfire Zones
Large portions of Napa, particularly the eastern hillsides above Coombsville and Alta Heights, the Silverado / Atlas Peak corridor, the Browns Valley / western hillsides, and the northern edges of the city, are mapped as Local Responsibility Area Very High, High, or Moderate Fire Hazard Severity Zones in the State Fire Marshal's February 2025 update. Designation triggers 100-foot defensible space, California Building Code Chapter 7A wildland-urban-interface construction standards, and Natural Hazard Disclosure at sale.
Napa, CA Wildfire Hazard Zones (Post-Atlas, Glass & 2024 Fires)
Some RestrictionsCal. Pub. Res. Code Sections 4201-4204 / Cal. Code Regs. tit. 14 Section 1280.01 (FHSZ)
The State Fire Marshal is mandated to classify lands within State Responsibility Areas into Fire Hazard Severity Zones (FHSZ). Fire Hazard Severity Zones fall into one of the following classifications: Moderate, High, Very High. ... Classification of all lands within State Responsibility Areas into fire hazard severity zones is required by law. The regulation can be found in Title 14 of the Cal...
Looking for Napa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Napa city rules.
Fire Regulations in Napa County →