Know where your five feet stand for Zone 0 compliance.

We're building a free, address-based check for California's Zone 0 ember-resistant zone rule (PRC §4291 / AB 3074), with an AI-assisted photo report with the exact fixes for anything we find. Leave your email and we'll let you know the moment it's live.

What Zone Zero Check will do: enter your address and get a free read on your property's Zone 0 status — no account, no photos required. From there you have an option to upload photos where our AI model analyzes them against the actual rule text and lists every problem found, each with a clear, specific fix.

Zone Zero Check will be an independent, AI-assisted informational tool. It is not affiliated with CAL FIRE or the State of California, and does not satisfy the official Defensible Space Inspection required under Civil Code §1102.19 (AB 38) for a home sale.