Is your fence in San Diego's Zone Zero?
California's new ember-resistant zone rules (AB 3074 & PRC §4291) change which fences are allowed within 5 feet of your home. Check your property, understand the law, and let Apache Fence build you a compliant fence the right way.
What is Zone Zero?
Zone Zero — officially the "Ember-Resistant Zone" — is a 0 to 5 foot buffer measured from any structure on your property: your home, garage, deck, and stairs. Under California AB 3074 and Public Resources Code §4291, all combustible materials in this zone must be removed or replaced with non-combustible alternatives.
The goal is an ember-resistant perimeter that stops wind-driven embers from igniting materials next to your home. It matters here because more than 817,000+ acres of San Diego County are designated Very High Fire Hazard Severity Zones.
Critical deadline: existing homes in Very High Fire Severity Zones must comply by February 2027. New construction must comply immediately upon completion.
Check Your Property
Use the official tools below to see if your San Diego property falls within a Very High Fire Hazard Severity Zone:
CAL FIRE State Map
State Responsibility Area — rural, wildland-adjacent areas
San Diego City / County Map
Local Responsibility Area — inside incorporated city limits
If either map shows your property in a Very High Fire Severity Zone, Zone Zero applies to you.
Does your fence need to change?
Most backyards have a wood fence along the property line. The simple rule: measure 5 feet from your house. Any fence or gate within that 5-foot zone must be non-combustible. Everything beyond 5 feet can stay as-is.
Not allowed in Zone 0
- Wood fencing (cedar, redwood, pine)
- Vinyl / PVC fencing
- Composite materials
- Fire-retardant treated wood
- Bamboo fencing
Approved for Zone 0
- Aluminum — lightweight, durable
- Steel / Wrought Iron — strong, classic
- Masonry / Concrete Block
- Gabion (stone in wire mesh)
- Chain Link (galvanized)
Apache Fence builds powder-coated wrought iron — a popular Zone-0-approved choice.
Zone Zero FAQ
Do I need to replace my entire fence?
No. Only fence sections within 5 feet of ANY structure (yours or your neighbor's) made of combustible materials must be replaced. Fencing further than 5 feet from all structures can remain as-is.
Can I use fire-retardant treated wood?
No. Fire-retardant treated wood is still combustible and fails ASTM E136 non-combustibility testing. It does not meet Zone Zero requirements.
What about shared fences with my neighbor?
If your neighbor's house is within 5 feet of a shared fence, that fence falls in their Zone 0 and must be non-combustible — even if your house is farther away (CA Civil Code §841).
What happens if I don't comply by February 2027?
Penalties range from $500 to $1,000+ per violation. More importantly, non-compliant properties face increased wildfire risk and potential insurance issues.
Can Apache Fence build a Zone Zero compliant fence?
Yes. We specialize in powder-coated wrought iron and steel fencing that meets all Zone Zero non-combustibility requirements. Call for a free assessment.
Need a Zone Zero compliant fence?
We will tell you exactly which sections need to change and which can stay — then build you a compliant fence that is straight, solid, and made to last.
Call (619) 672-8720