What Zone 0 Rules Apply in Hidden Hills?
Zone Zero Hidden Hills / Regulations
What is law, and what is only a draft
Required now: PRC §4291 and Gov. Code §51182 already require roofs and gutters to be kept clear of leaves and needles and branches within 10 feet of a chimney outlet to be removed. That is existing state law.
Proposed — not in force: AB 3074 directed the state to create an ember-resistant zone in the first five feet around structures. The Board of Forestry approved a draft on August 19, 2026, but the emergency filing (OAL file 2026-0828-03E) is listed as withdrawn on September 8, 2026. There is no statewide effective date.
Local status: we have not identified a local Zone 0 ordinance for Hidden Hills. Local rules can be adopted separately from the state, so confirm with LA County Fire and the city before acting on any deadline.
Who is the fire authority, and what do they say about Zone 0?
Hidden Hills is an incorporated city. The Los Angeles County Fire Department's Defensible Space program covers Hidden Hills, according to the county's list of covered cities. The county's page lists chimney clearance as required and a 100-foot defensible-space radius as a recommendation. It does not use Zone 0 as a requirement.
As of September 19, 2026 we have not identified a local Zone 0 ordinance for Hidden Hills. Our check covered the county's program page, the city's site, and targeted searches. It was not a review of the city's full municipal code, so a negative here means "not identified," not "does not exist."
The fire authority
Los Angeles County Fire Department. Its Defensible Space program covers Hidden Hills, per the county's list.
The local status
No local Zone 0 ordinance identified as of September 19, 2026. The statewide draft is Proposed — not in force.
The next step
Confirm with LA County Fire and the city before acting on any deadline. The City of Hidden Hills also offers free Home Ignition Zone assessments, according to its website.
Regulation questions, answered
Is Zone 0 required in Hidden Hills?
Not by any local ordinance we have identified. As of September 19, 2026 we have not identified a local Zone 0 ordinance for Hidden Hills, and no statewide Zone 0 regulation is in force. Confirm with LA County Fire and the city before acting on any deadline.
Is Zone 0 a statewide law in California?
As of September 19, 2026 there is no statewide Zone 0 regulation in force. AB 3074 directed the state to create an ember-resistant zone. The Board of Forestry approved a draft on August 19, 2026, but OAL file 2026-0828-03E is listed as withdrawn on September 8, 2026. The draft is Proposed — not in force.
Is Zone 0 the same as LA County Fire's defensible space program?
No. The county's Defensible Space program page lists chimney clearance as required and a 100-foot defensible-space radius as a recommendation. It does not present Zone 0 as a requirement. Zone 0 concerns the first five feet around a structure and is Proposed — not in force statewide.
What is required of me now?
Existing state law: PRC §4291 and Gov. Code §51182 require roofs and gutters to be kept clear of leaves and needles and branches within 10 feet of a chimney outlet to be removed. Clearing the first five feet, including around barns, is Recommended now.
Have a question about your parcel?
Send a request and the team will follow up by email.