The state-mandated clearance requirements are in effect now for new construction, with existing homes having to comply by 2027.

New California requirements for “Zone Zero” wildfire safety are now in effect, with much of La Jolla affected.

The Zone 0 requirements impact structures within areas designated as Very High Fire Severity Zones; a city of San Diego map shows most of La Jolla is within this designation.

City of San Diego Very High Fire Hazard Zone-Effective August 30, 2025

Zone Zero is the area within five feet of a structure, including attached decks and stairs, where research shows the most vulnerability to ignition from wind-driven embers during a wildfire.

The Zone Zero requirements, which apply now to all new structures built in the Very High Fire Severity Zones within the city, mean applicants for new building permits must demonstrate compliance with Zone Zero requirements during the permit review process, including maintaining an ember-resistant zone within the five required feet of the structure.

Existing home and property owners in Very High Fire Severity Zones must take proactive steps to meet Zone Zero guidelines by February 2027 in order to be in compliance with the state’s requirements. This includes:

• Removing dead plants, dry or fallen leaves, pine needles, mulch, firewood, trash, debris and other flammable materials in Zone Zero, including roofs and gutters, decks, porches, balconies, stairways and areas beneath the home.
• Using hardscape materials such as concrete, gravel, pavers, or bare soil within the Zone 0 area.
• Limiting combustible items such as outdoor furniture and planters on decks.
• Replacing combustible fencing, gates and arbors with non-combustible alternatives.
• Relocating garbage and recycling containers, boats, RVs and vehicles outside of Zone 0.

Trees are allowed within Zone Zero as long as they are properly maintained and regularly pruned, with healthy branches kept at least five feet from roofs and exterior walls.

About 142,571 acres, or two-thirds of San Diego property, lie within designated Very High Fire Risk Severity Zones; city officials are encouraging existing home and property owners in these areas to begin taking meaningful, proactive steps toward compliance over the coming year.