California’s State-Mandated ‘Zone Zero’ Requirements
On Feb. 12, 2026, the City of San Diego notified residents of state-mandated “Zone Zero” wildfire safety requirements for all new structures built within Very High Fire Severity Zones. The Zone 0 requirements focus on the area closest to a home or building, where research shows they are most vulnerable to ignition from wind-driven embers during a wildfire. Zone Zero, also known as the ember-resistant zone, refers to the area within five feet of a structure, including attached decks and stairs.
“Creating defensible space is one of the most effective steps a homeowner can take to reduce their wildfire risk,” said San Diego Fire-Rescue Chief Robert Logan. “These statewide standards focus on the area closest to the home, where embers pose the greatest threat, and where informed and intentional actions today help protect homes, communities, and firefighters tomorrow.”
