Los Angeles • Porter Ranch

Porter Ranch’s Foothill Homes Face California’s New Zone Zero Rules

Porter Ranch was built directly against the Santa Susana Mountains foothills, and its northern tracts sit inside California's new Zone Zero fire hazard zone. The 2019 Saddleridge Fire started near the community and forced evacuations reaching 100,000 people. The rule requires a 0 to 5 foot ember-resistant ring around affected structures.

Zone Zero Los Angeles / Porter Ranch

The Neighborhood

Zone Zero in Porter Ranch

Porter Ranch is a master-planned community at the northernmost edge of the San Fernando Valley, built directly against the Santa Susana Mountains, with newer hillside tracts positioned closest to open wildland.

Porter Ranch's northern streets, closest to the open foothill space along the Santa Susana Mountains, fall within Los Angeles's Very High Fire Hazard Severity Zone.

California's regulation targets the 0 to 5 foot ring around every structure, known as Zone Zero or Zone 0, requiring this ember-resistant zone to stay clear of combustible mulch, plants, and debris.

0-5 ft
Zone Zero radius
LAFD
Enforcing authority
2027-2028
Est. Phase 1 deadline
100% Free
Homeowner assessment

Who Enforces This

Los Angeles Fire Department

Los Angeles Fire Department enforces Zone Zero across Porter Ranch, as it does citywide. Because Porter Ranch was built directly against the Santa Susana Mountains foothills, LAFD's annual Brush Clearance Unit inspection, which begins each spring, treats the community's northern tracts as a priority area.

Local Fire History

Why Porter Ranch Takes This Seriously

The Saddleridge Fire ignited near Porter Ranch in October 2019 and burned 7,542 acres, forcing evacuation orders that reached more than 100,000 people and 20,000 homes across Porter Ranch, Granada Hills, and Sylmar. More than 31 structures were destroyed. For a community built directly against the wildland edge, it was a direct test of exactly the kind of ember exposure Zone Zero rules are designed to prevent.

Porter Ranch Neighborhood Council

The certified neighborhood council for the community has addressed fire safety, evacuation planning, and hillside development concerns in public meetings since the Saddleridge Fire, given how directly it affected local residents.

Frequently Asked

Porter Ranch Zone Zero Questions

Did the Saddleridge Fire start in Porter Ranch?

The fire ignited near the community in October 2019 and burned 7,542 acres in the surrounding foothills, forcing evacuation orders that reached more than 100,000 people across Porter Ranch, Granada Hills, and Sylmar.

Is all of Porter Ranch in the Very High fire hazard zone?

The northern tracts closest to the open foothill space are the most clearly affected. A free assessment confirms your specific parcel's status rather than relying on a general community-wide answer.

What changes under the new Zone Zero rule versus older brush clearance rules?

Zone Zero is stricter: it requires the 0 to 5 foot ring immediately around your structure to be essentially free of combustible mulch, plants, and debris, not just cleared of tall brush the way older 100-foot defensible space rules required.

Get Your Porter Ranch Home Zone Zero Ready

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