Brush Clearance: Altadena vs Carson
How do brush clearance rules compare between Altadena, CA and Carson, CA?
Carson has fewer restrictions than Altadena.
Altadena, CA
Los Angeles County
Altadena is largely in a Very High Fire Hazard Severity Zone. LA County Fire requires year-round brush clearance within 200 feet of any structure and 10 feet of combustible fences and roadways.
View full Altadena rules →Carson, CA
Los Angeles County
Carson is largely outside CAL FIRE-designated Very High Fire Hazard Severity Zones, but LACoFD enforces brush-clearance and weed-abatement rules wherever structures abut open space. The state baseline of 100 feet of defensible space under Public Resources Code §4291 applies to any SRA/VHFHSZ parcel, and LACoFD administers the program.
View full Carson rules →Key Facts Comparison
| Fact | Altadena | Carson |
|---|---|---|
| Defensible Space | 200 ft around structures | - |
| Fence/Driveway Clearance | 10 ft | - |
| Grass Height | ≤ 3 inches | - |
| Tree Limb Up | ≥ 6 ft above ground | - |
| Authority | LA County Fire Code Title 32 + PRC 4291 | - |
| State requirement | - | 100 ft defensible space (PRC §4291) in SRA/VHFHSZ |
| Carson WUI status | - | Mostly outside CAL FIRE VHFHSZ — urban/industrial LRA |
| Local enforcement | - | LACoFD Brush Clearance Unit |
| Chimney clearance | - | 10 ft vegetation clearance around chimney outlets |
| Non-compliance remedy | - | County-performed abatement + lien on property |
Highlighted rows indicate differences between cities.
Altadena FAQ
How much brush clearance is required in Altadena?
200 feet of defensible space around any structure if you are in a Very High Fire Hazard Severity Zone, per LA County Fire and California PRC 4291.
Carson FAQ
Does the 100-foot defensible space rule apply in Carson?
It applies only to parcels in a State Responsibility Area or Very High Fire Hazard Severity Zone. Most of Carson is urban Local Responsibility Area outside VHFHSZ, but LACoFD still enforces brush and weed abatement on vacant or fire-prone parcels.
Who enforces brush clearance in Carson?
The LA County Fire Department (LACoFD) Brush Clearance Unit. Carson contracts fire services to LACoFD, so county personnel inspect and issue notices.
What happens if I do not clear my lot?
LACoFD issues a Notice to Comply. If you do not clear by the deadline, the county will hire a contractor to abate the lot and bill you, with the cost recorded as a property tax lien under LA County Code §11.24.
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