Fire & Property
Does my Porter Ranch home need brush clearance?
Updated August 2026
By Porter Ranch Pros — sourced from LAFD and LAMC Section 57.1.603.5.
If your property sits in the City of Los Angeles Very High Fire Hazard Severity Zone — and much of Porter Ranch does — then yes: brush clearance is required by law, not optional. The Los Angeles Fire Department inspects every parcel in the zone annually, with inspections beginning May 1 each year. You can check your specific parcel through LAFD's brush clearance system at lafd.org/brush.
What the law actually requires
The requirements come from Los Angeles Municipal Code Section 57.1.603.5, enforced by the LAFD Brush Clearance Unit. The core standard is defensible space around structures. The specific clearance measurements the code requires are summarized in the table below.
| Requirement | Standard | Source |
|---|---|---|
| Defensible space around structures | 100 ft (up to 200 ft where LAFD requires) | LAMC 57.1.603.5 |
| Grass height (within 200 ft of structures / 10 ft of roadways) | Cut to 3 inches | LAMC 57.1.603.5 |
| Tree clearance above roof surfaces | 5 ft vertical | LAMC 57.1.603.5 |
| Branch distance from chimneys | 10 ft | LAMC 57.1.603.5 |
| Roofs and gutters | Free of leaves, needles, combustible buildup | LAMC 57.1.603.5 |
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The May 1 deadline and the inspection fee
LAFD schedules its compliance inspections to begin May 1. Per the department's 2026 owner notification, parcels that already comply by that date avoid the $31-per-parcel inspection fee; parcels that fail are billed, and late payment carries a steep penalty. The practical takeaway: do the work in late winter or early spring, before the inspection cycle starts — not after a notice arrives.
"Zone 0" — the new rule to watch
California is phasing in an additional requirement under state law (AB 3074) called Zone 0, or the ember-resistant zone: the first 5 feet around a structure, including attached decks and the space beneath them. It is separate from the annual LAFD program and was not yet being enforced as of this update — but it signals where the rules are heading. If you're redoing landscaping anyway, keeping that first 5 feet free of combustible plants and mulch is planning ahead, not overkill.
What this looks like as a yearly routine
Porter Ranch backs up to open hillside, which is exactly why the zone exists. A realistic annual rhythm: walk the property in February, cut grass and thin brush in March and April, trim trees off the roofline, and clear the roof and gutters — then repeat a lighter pass before Santa Ana season in fall. Slopes and larger lots are genuinely hard work; this is a job many homeowners hand to a landscaper who knows the LAFD standards.
Common questions
Is brush clearance mandatory in Porter Ranch?
For parcels inside the City of Los Angeles Very High Fire Hazard Severity Zone, yes — it's required under LAMC Section 57.1.603.5 and inspected annually by LAFD. Check your parcel's status at lafd.org/brush.
When does LAFD inspect for brush clearance?
Inspections begin May 1 each year. Complying before that date avoids the per-parcel inspection fee.
How much clearance do I need around my house?
The general standard is 100 feet of defensible space around structures, extendable to 200 feet where the fire department determines conditions require it — with specific rules for grass height, tree clearance above roofs, and chimney setbacks.
Who do I contact with questions about my parcel?
The LAFD Brush Clearance Unit — (800) 994-4444 on weekdays, or lafdbrush@lacity.org. Their site at lafd.org/brush is the primary source for current requirements.