A defensible home has the greatest potential for survivability in the event of a wildfire during average wind conditions. Defensible homes are those that are in compliance with "defensible space" requirements or a fuel modification program and have been "hardened" in accordance with Chapter 7A of the California Building Code.
Defensible space is the required distance between a structure and the wildland area that, under normal conditions, creates a sufficient buffer to slow or halt the spread of wildfire to a structure. It protects the home from igniting due to direct flame impingement and radiant heat. Compliance is essential for structure survivability during wildfire conditions. Defensible space requirements apply to all structures regardless of the year built.