County guide

Zone 0 in Los Angeles County: what applies where

Fact-checked August 19, 2026·Sources at the end of this article

Two laws, two map layers: where the adopted rule reaches

Geography settles most of this. The statewide Zone 0 regulation (the ember-resistant zone covering the first five feet around a structure) was adopted on August 19, 2026 and is not yet in effect, but its scope is settled: it applies in two kinds of places, and Los Angeles County has plenty of both.

The first is the State Responsibility Area (SRA), land where the state holds financial responsibility for wildfire protection. There, the regulation covers every hazard class (Very High, High, and Moderate) under Public Resources Code §4291. The second is the Local Responsibility Area (LRA), which in practice means incorporated cities, where it covers only Very High Fire Hazard Severity Zones (FHSZs) under Government Code §51182. Federal Responsibility Area land is not covered.

A structural quirk: Los Angeles is one of California's six CAL FIRE "contract counties" (with Santa Barbara, Kern, Marin, Orange, and Ventura). The Los Angeles County Fire Department provides SRA fire protection under contract with CAL FIRE; there is no separate CAL FIRE unit running the SRA inside the county.

The communities mapped Very High: the sourced list

The State Fire Marshal issued the 2025 recommended LRA hazard maps for Los Angeles County on March 24, 2025, the first update since 2011. Countywide, Very High acreage grew more than 30%. State law gives local agencies 120 days to adopt the zones by ordinance; we could not confirm final adoption ordinances for the county or the City of LA, so treat adoption as in progress.

What the sources establish:

• Malibu: the entire city is in a Very High FHSZ, and has been since the 2007 maps, per the city's June 2025 staff report.
• La Cañada Flintridge: the entire city is designated Very High, per the city's Building & Safety division.
• City of Los Angeles: the city's Very High zone, first established in 1999, covers 31+ hillside and mountain communities including Pacific Palisades, Bel Air Estates, Brentwood, Encino, Hollywood, Los Feliz, Sherman Oaks, Baldwin Hills, San Pedro, and Woodland Hills. LAFD estimates the 2025 maps will increase the parcels covered.
• Altadena and Pasadena: Very High zones expanded on the 2025 maps. But as LAist reported, the mapped zones did not reach as far into Altadena as the January 2025 Eaton fire actually spread, because the state model assesses wildland fire, not urban conflagration.
• Santa Clarita Valley: local news reported the 2025 maps put most of the valley in Very High. We could not load the primary source; treat as reported, not verified.

The local ordinance reality: nothing adopted, and one city pushing back

Some trade publications have reported that Los Angeles County has its own local Zone 0 ordinance already in force. We went looking and could not find it. No adopted county-level Zone 0 or ember-zone ordinance turned up, and the county's own 2026 clearance notice, mailed to every declared parcel owner before the Board acted, says the opposite in its AB 3074 update:

As of now, the requirements have not been identified; however, the Board of Forestry anticipates making a final determination in 2026. This legislation is expected to severely restrict combustible material within five feet of all residential structures within all SRA Fire Hazard Severity Zones and the LRA Very High Fire Hazard Severity Zone.

Los Angeles County Fire Department, 2026 Annual Defensible Space Clearance Notice

The Board made that determination on August 19, 2026. The same notice told residents that once it did, "requirements will be immediately effective for all new construction and will apply to existing structures three years later." The adopted package is more granular than that summary: for existing structures, roof and gutter debris and the tree-maintenance items apply on the effective date itself, other combustible-material items run three years, and vegetation buffers, fences, gates and outbuildings run three years, or up to five on a local fire agency's timeline. Our timeline and enforcement page lays out the tiers, none of which is running yet, because the regulation has no effective date.

Meanwhile the City of Los Angeles is moving the other way. In January 2026, the City Council directed LAFD to draft its own more lenient Zone 0 rules, rules that allow healthy vegetation and do not require removing tree limbs within five feet of a house. No ordinance has been adopted. The contested items are vegetation and tree limbs. Fences are not in dispute; the no-combustible-fence provision has broad support among fire professionals. For how LA compares with jurisdictions that have adopted rules, see our local ordinance roundup.

Who inspects: two separate programs, two sets of fees

Zone 0 may be pending, but defensible space enforcement here is not. Which agency visits you depends on where you live. The Los Angeles County Fire Department (legally the Consolidated Fire Protection District) serves the unincorporated areas plus 59 contract cities, including Malibu, La Cañada Flintridge, Santa Clarita, Calabasas, Palmdale, and Rancho Palos Verdes. The City of Los Angeles is not among them: LAFD runs its own brush clearance program inside the city's Very High zone.

Two details worth flagging. If you sell a home in a fire hazard zone, AB 38 requires a compliant defensible space inspection report during escrow; the county program handles these. And LAFD's city requirements already mention fences: grass within 10 feet of a combustible fence must be cut to 3 inches. Your fence is on the inspection radar before any Zone 0 rule exists.

Local help: what exists, and what we could not confirm

The Santa Monica Mountains Fire Safe Council is the most developed homeowner resource in the county: Home Ignition Zone property evaluations, a tool lending library, Firewise USA community support, and a dedicated Zone Zero education page (contact: info@smmfsc.org, 818-964-1847). The county's fee relief for January 2025 fire survivors is described above.

Being honest about the gaps: a claim that county fire offers free home hardening assessments appeared only in search summaries; we found no county page confirming it. And no California program currently pays for fence replacement as a standalone item statewide; most fuels-reduction grants cover vegetation only. Budget accordingly.

What this means for you

Nothing about Zone 0 requires action from a Los Angeles County homeowner today, adoption included. The sensible order of operations:

1. Find your zone. Use our address lookup walkthrough for the official CAL FIRE / OSFM maps. If you are in the SRA (any class) or a city Very High zone, the adopted rule will apply to you once it is effective. In a city High or Moderate zone it will not.
2. Walk your first five feet. The Zone 0 self-assessment takes about twenty minutes and tells you where you actually stand. Most homes need less than owners fear.
3. Know the fence rules before anyone quotes you. The regulation requires a five-foot noncombustible span where a fence attaches to the house, and noncombustible materials for new fences within five feet, though none of it is enforceable until the effective date. It does not require tearing out an existing wood fence, and repairs may still use wood. One caution on wording: the August 19 package published in the board binder is the pre-meeting deliberative draft, and no certified "as adopted" text has been published yet, so exact provision language is still pending. Details in our California Zone 0 fencing guide.
4. Mind the timeline. Fences on existing homes fall in Phase 2: three years from the effective date, or up to five on a local fire agency's schedule. New construction complies from the effective date. There is no deadline running today, because that date does not exist yet.
5. Work the checklist. The Zone 0 checklist covers the five-foot zone item by item. If you make changes, document them; the Safer from Wildfires regulation already requires insurers to credit noncombustible fencing within five feet.