Zone Zero Requirements in Calabasas
Calabasas has already watched embers do the damage
In November 2018 the Woolsey Fire crossed the 101 and burned straight through the Calabasas hills, forcing the evacuation of the entire city. Homes here were not lost to a wall of flame. They were lost to wind-blown embers that landed in mulch beds, wood fences, and dry plantings pressed against the house.
Two years earlier, the June 2016 fire above Old Topanga forced about 5,000 people out of their homes in a single weekend. Calabasas sits where the Santa Monica Mountains meet the Valley. The exposure is not theoretical.
From the oak canyons off Mulholland Highway to the gated streets of The Oaks and the ridgeline homes above Las Virgenes Road, Zone Zero applies to the mapped hazard parcels, and in Calabasas that means most of the city.
What Zone 0 requires, and when
Requirements arrive in phases. Rebuilds and new construction comply from day one.
Clear the five feet
Mulch, dead plants, firewood, stored items: all of it leaves the 0-5 ft zone. Estimated deadline 2027-2028.
Replace what burns
Combustible fences, gates, and attached decks in the zone get replaced. The local jurisdiction sets the deadline, up to 5 years after adoption.
New fences & rebuilds
No new combustible fences in Zone Zero once regulations adopt. Fire rebuilds meet Zone Zero from day one, with no grace period.
Harden vents now
Ember-resistant vents are the highest-value upgrade you can make today. No deadline needed.
LA County Fire enforces Zone Zero in Calabasas
Calabasas contracts all fire services through the Consolidated Fire Protection District of Los Angeles County. County fire crews from Stations 68, 67, and 125 protect the city, and the department already runs annual defensible space inspections in the hazard zones. Zone Zero layers onto that existing program. Enforcement is education-first under the April 2026 draft, but the requirements are real and the inspections already happen every year.
The city also maintains a Community Wildfire Protection Plan, and the local Calabasas Firewise effort has been tracking the 2025 CAL FIRE hazard remap closely. This is a community that takes the maps seriously.
Gated streets, oak canyons, and the Mulholland corridor
Calabasas is a city of enclaves: The Oaks, Mountain View Estates, the hillside communities along Parkway Calabasas, and the semi-rural canyon roads running toward Old Topanga. Next door, Hidden Hills is a separate city with the same LA County Fire protection and the same exposure.
The common thread is vegetation meeting structures. Ornamental hedges against stucco, wood gates tied into the house, bark mulch to the foundation line. Zone Zero targets exactly that first five feet, and in a community built around mature oaks and manicured landscaping, the details of what stays and what goes matter. Our landscaping guide covers the oak question specifically.
Quick answers for Calabasas homeowners
Who enforces Zone Zero in Calabasas?
The Los Angeles County Fire Department. Calabasas contracts all fire services through the Consolidated Fire Protection District of Los Angeles County, with Stations 68, 67, and 125 serving the city and a Fire Prevention Office on Agoura Road.
Does Zone Zero apply inside gated communities like The Oaks?
Yes. The law follows the fire hazard maps, not the gate. Private streets and HOA-managed communities along the Mulholland corridor are subject to the same 0-5 ft requirements as every other parcel in a Very High Fire Hazard Severity Zone.
Is this the same as the brush clearance notice I already get?
No. LA County Fire's defensible space inspections cover vegetation out to 100 feet or more. Zone 0 is new and stricter: it regulates everything in the first 5 feet, including mulch, wood fencing, and stored items, not just plants.
When does enforcement actually start?
Final state regulations are expected late 2026. New-fence and rebuild rules apply immediately at adoption. Phase 1 clearing for existing homes follows, estimated 2027-2028, and enforcement is education-first under the April 2026 draft.
Find out exactly what your home needs
Free assessment from a CSLB-licensed local contractor. Know where you stand before the deadlines do.