BETTER INSIGHT GUIDE
California Zone 0
What Buyers & Sellers Need to Know About California's New Ember-Resistant Zone
Better Insight. Better Decisions.
What Is Zone 0?
California's new Zone 0 establishes an ember-resistant area extending from the structure outward approximately five feet.
Why the first five feet? During a wildfire, wind-driven embers can collect against a home, ignite vegetation, mulch, debris or other combustible materials, and then expose the structure to direct flame and radiant heat. The Board cites research showing that vegetation and combustible materials immediately adjacent to structures can play an important role in home ignition.
Better Insight: Think of Zone 0 differently from traditional defensible space. The goal isn't simply less vegetation. It's reducing the things immediately next to the structure that can ignite and carry fire to it.
What Will Change Around the Home?
Under the regulations approved by the Board, Zone 0 addresses far more than shrubs.
Among the items covered are combustible mulch and debris, vegetation beneath decks and stairs, firewood, tree limbs near roofs and walls, vegetation near windows, doors and vents, combustible fencing attached to structures, and certain outbuildings. The regulations do allow limited types of maintained non-woody vegetation under specific spacing and location requirements.
0–5 FEET — ZONE 0
Ember-resistant area
5–30 FEET — ZONE 1
Lean, clean and maintained
30–100 FEET — ZONE 2
Reduced fuels and vegetation management
The Board describes Zone 1 as extending from five to 30 feet and Zone 2 from 30 to 100 feet, or to the property line where applicable.
SRA vs. LRA: Why It Matters
SRA — State Responsibility Area
These are generally lands where the State has primary financial responsibility for wildfire prevention and suppression. SRA does not include incorporated city lands or federally owned lands. Under the new Zone 0 rule, the requirements apply to buildings and structures throughout the SRA, regardless of whether the particular parcel is mapped Moderate, High or Very High Fire Hazard Severity.
LRA — Local Responsibility Area
These are areas where local fire agencies have primary fire-protection responsibility, including incorporated cities and certain other areas. For purposes of these statewide Zone 0 regulations, the rule applies to occupied structures in LRA areas designated Very High Fire Hazard Severity Zones.
Better Insight:
Responsibility Area and Fire Hazard Severity Zone are not the same thing.
When Does This Happen?
August 19, 2026 — California Board of Forestry and Fire Protection approved the emergency Zone 0 regulations.
On or after August 28, 2026 — Board anticipates submitting the regulations to the Office of Administrative Law. If submitted August 28 and posted then, the notice says the public-comment period would close September 2.
Once effective — New structures: New buildings/occupied structures subject to the regulations must comply with the Zone 0 requirements upon the regulation's effective date.
Existing structures: This is phased. Some maintenance provisions apply upon the effective date, while other requirements phase in over three to five years, depending on the provision, whether the property is SRA or LRA, and the implementation timeline established by the responsible agency.
Don't panic and don't start tearing out landscaping based on a headline. Understand which rules apply to your property and when they apply.
What Does This Mean When Buying or Selling?
For Sellers
Zone 0 should become part of the property's pre-listing conversation. Before spending money, understand the property's responsibility area, Fire Hazard Severity Zone, existing defensible-space requirements, landscaping immediately around the home, fences and gates attached to structures, decks and accessory structures.
California already has defensible-space requirements and sale-related inspection/documentation requirements for certain properties in fire-hazard areas. Zone 0 adds another issue agents and sellers will need to understand as implementation moves forward.
For Buyers
Don't treat Zone 0 as a reason to automatically reject a property.
Instead ask:
What will I need to change? What will it cost? When will compliance be required?
A beautiful wood fence attached to the house, mature landscaping against the structure, combustible mulch, vegetation beneath a deck or a small shed beside the home may deserve a closer look under the new requirements.
Better Insight Before You Make a Decision
California's wildfire regulations are changing, but the goal isn't to scare buyers or sellers. It's to understand the property before making a decision.
My 33 years with CAL FIRE taught me that wildfire risk isn't determined by one feature, one map or one regulation. Access, construction, vegetation, topography, water, maintenance and the surrounding community all matter.
Today I bring that experience to real estate—not to perform regulatory inspections or guarantee compliance, but to help clients ask better questions, understand what they're looking at, and know when additional professional guidance is appropriate.
Better Insight. Better Decisions.
That last distinction is important for you. I don't want the guide accidentally positioning you as the client's Zone 0 compliance inspector just because you know the subject exceptionally well.
I'd also include two official resources at the end: the California Board of Forestry Zone 0 information and the CAL FIRE Fire Hazard Severity Zone maps.
This one guide can then produce your next postcard topic, Better Insight Tuesday post, a 60–90 second video, Facebook/Nextdoor post, website article, and a 3–5 minute MLS/broker presentation without creating six different pieces of content from scratch.