Zone Zero Landscaping
in San Diego County
ARC DESIGN LANDSCAPE helps Homeowners in Southern California Stay Compliant
What is Zone Zero?
Zone Zero is the ember-resistant area from the exterior of a structure such as a home or building within five feet. It also includes attached decks, stairs and other attached features, plus the areas beneath them.
The intent is to keep embers from landing in fuel next to a home or structure and starting a fire at the wall, under an eave, beside a vent or beneath a deck. The strongest practical approach is a continuous noncombustible surface such as pavers, cement concrete, gravel, decomposed granite or natural stone.
Zone Zero is not the same as clearing your entire yard.
Thoughtful planting can continue in Zones 1 and 2. However, the goal is to break the path that lets fire travel from vegetation, mulch, fencing or stored items to the structure.
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A Look At San Diego's Legal Status
City of San Diego – The City states that Zone Zero applies to new structures in its Very High Fire Hazard Severity Zones as of February 28, 2026, and that existing properties in those zones must take steps to comply by February 28, 2027.
Unincorporated County – County fire-prevention guidance already states that the first five feet measured from exterior walls must use noncombustible materials such as gravel, river rock or hardscape.
Unincorporated County – County fire-prevention guidance already states that the first five feet measured from exterior walls must use noncombustible materials such as gravel, river rock or hardscape.
Other County Cities – Dates and inspection practices vary by city and fire authority. Confirm requirements with the agency serving the property before construction.
Statewide Rule – The Board of Forestry adopted Zone Zero guidance and advanced the regulations package in August 2026, but as of this page’s review date final review, publication and the effective date were still pending.
Zone Zero addresses The Most Common Weak Points
Wildfire can reach a home or structure through embers, a direct flame or radiant heat. The landscaping around a home or building that is immediately against the structure can turn a small ember into a sustained flame or fire.
Embers Collect At Edges
Wind blows and pushes embers into mulch, leaf litter, wall corners, roof valleys, gutters, vents as well as the gaps beneath decks.
Nearby Fuel Creates A Flame
Wood mulch, woody shrubs, synthetic turf, firewood and combustible fencing can easily ignite and hold flame against a home or structure.
Hardscape Breaks The Path
A correctly built noncombustible band separates a house or structure from surrounding fuels while controlling drainage and preserving curb appeal.
What To Do Now
Start with the cheap, immediate work. Then plan permanent hardscape, drainage, irrigation and fence transitions as one coordinated project.
Do not install artificial turf in Zone Zero.
California’s 2026 guidance identifies synthetic lawns as fuel. ARC installs premium turf, but the ideal design is to start it outside the ember-resistant band and separate it from your home or building with noncombustible hardscape.
Remove combustible ground cover
Clear bark, wood chips, rubber mulch, dead leaves, needles and accumulated debris from the first five feet
Move stored fuel away
Relocate firewood, lumber, cardboard, trash and recycling containers, furniture cushions and other easily ignited items.
Clean roofs, gutters and deck gaps
Remove leaves, needles and debris that can catch embers and potentially catch fire.
Correct vegetation placement
Remove dead or dying growth. Keep plants out from under eaves and away from windows, doors and vents as required by local standard and local laws.
Address attached wood fencing
Break the direct fuel path with a noncombustible gate or transition section where fencing connects to the home.
Design the hardscape as a system
Coordinate finished grades, drainage, irrigation, utility access and transitions into Zone 1 before installing rock or pavers.
Document the finished work
Keep dated before-and-after photos, product records, contractor documents and maintenance notes for inspectors as well as your insurer.
When Is Zone Zero Being Enforced?
There is no single honest answer for every address in San Diego County. Your deadline depends on whether the property is in a State Responsibility Area, the City of San Diego or another local jurisdiction. However, here is a general timeline.
Now
Existing defensible-Space Rules Still Apply
Roof and gutter debris, exposed firewood, dead branches and chimney clearance are not items to postpone while statewide Zone Zero details are finalized.
February 28, 2026
City of San Diego: New Structures
The City says new structures in its designated Very High Fire Hazard Severity Zones must follow Zone Zero requirements from this date.
February 28, 2027
City of San Diego: Existing Structures
The City tells existing owners in those zones to meet Zone Zero by this date, while emphasizing education, guidance and a practical path to compliance.
State Effective Date
Statewide Clock Begins After Final Publication
The Board’s adopted guidance describes immediate application to new permits once the regulation becomes effective, Phase 1 work for existing properties within three years and local scheduling of remaining Phase 2 work within five years. Local rules may be faster or more restrictive.
Don't wait for a citation!
Start removing obvious sources of fuel now. If the first five feet need reconstruction, begin planning your project now. Don’t wait until the last minute and contact ARC Design Landscape today!
Will Zone Zero Keep Insurance From Being Dropped?
No contractor can promise that. Zone Zero can reduce risk and may support an insurance discount, but it does not guarantee renewal, coverage or a specific premium.
The California Department of Insurance lists a five-foot ember-resistant zone—including fencing—as one of the actions qualifying for consideration under its Safer from Wildfires discount framework. At the same time, insurers use their own risk models and may demand measures beyond the minimum legal standard.
Before construction, ask your carrier—in writing—what mitigation documents it accepts. After construction, provide clear photos and records. If you receive a nonrenewal notice, ask the carrier which specific actions could retain coverage and contact the California Department of Insurance if the decision appears unfair.
About Penalties
California Public Resources Code §4291.1 allows $100–$500 for a first defensible-space violation, $250–$500 for a second violation within five years, and a third violation can become a misdemeanor with a fine of at least $500. Application to a particular property and Zone Zero requirement depends on jurisdiction, effective regulations, notice and local enforcement.
Zone Zero Landscape Services by ARC Design Landscape
Our team can redesign the first five feet as part of a focused retrofit or a larger landscape renovation. Your project and work is planned around your existing home or building.
Site Evaluation &
Measured Layout
Identify the five-foot perimeter, eaves, decks, stairs, vents, fencing, grades and fuel paths that affect the design.
Pavers, Concrete &
Porcelain
Construct durable noncombustible walkways and perimeter bands with proper base preparation, edges and transitions.
Gravel, Rock &
Stabilized DG
Install contained mineral surfaces over a prepared base so the finished area drains correctly and remains maintainable.
Drainage & Irrigation
Modifications
Preserve drainage away from the foundation and reroute drip or spray irrigation to support the revised planting design.
Fence & Gate Fuel
Breaks
Plan noncombustible transition sections where a wood fence or gate creates a direct path to the house.
Zone 1 Planting
Redesign
Move color, texture and privacy outward into separated planting groups that support the architecture without reconnecting fuels.
How The Retrofit Process Works
Verify
Preserve drainage away from the foundation and reroute drip or spray irrigation to support the revised planting design.
Inspect
Measure the perimeter and document fuels, grades, drainage and attached features.
Design
Select surfaces, borders, transitions and Zone 1 planting that fit the home and budget.
Build
Remove conflicting materials, prepare the base and install the approved landscape scope.
Document
Photograph the completed work and maintain the area so new debris does not erase the benefit.
5 Star Reviews
Zone Zero Landscaping Frequently Asked Questions
No. State defensible-space rules generally apply in State Responsibility Areas and to Very High Fire Hazard Severity Zones in Local Responsibility Areas. Local ordinances may also apply. Check the official map and confirm with the fire authority in your city.
The City states that new structures in designated Very High Fire Hazard Severity Zones have been subject to Zone Zero since February 28, 2026, and that existing owners in those zones need to meet Zone Zero by February 28, 2027. Always verify the current requirement for the specific property.
No. Pavers, concrete, porcelain, natural stone, gravel and stabilized decomposed granite can create a finished landscape. The 2026 state guidance also describes limited maintained herbaceous planting outside defined safety clearances, but local rules may be stricter. A full five-foot noncombustible band is the simplest conservative design.
Potentially. Current state guidance allows properly maintained existing trees while prohibiting new trees in Zone Zero. Dead growth must be removed, lower branches pruned, roof clearance maintained and leaf litter cleaned up. City or fire-authority rules control the final answer.
It should not be. California’s 2026 guidance specifically identifies synthetic lawn as a combustible fuel. Use a noncombustible separator between the structure and any turf located farther into the yard.
No. There is no plant that cannot burn. Placement, moisture, pruning, dead material and spacing matter more than a marketing label. Woody shrubs against windows or beneath eaves remain a bad idea even when sold as fire resistant.
No. It may help reduce risk and can qualify as an action under California’s Safer from Wildfires discount framework, but insurers use proprietary models and can require more than the legal minimum. Confirm documentation requirements directly with the carrier.