Weed Ordinances: Altadena vs Castaic
How do weed ordinances rules compare between Altadena, CA and Castaic, CA?
Altadena and Castaic have similar restriction levels.
Altadena, CA
Los Angeles County
LA County Fire's Brush Clearance program also functions as the weed-abatement ordinance — vacant and improved lots must keep weeds and grasses cut to under 3 inches in fire-hazard areas. Annual notices issued each spring.
View full Altadena rules →Castaic, CA
Los Angeles County
Unincorporated LA County requires weed and vegetation maintenance under fire hazard reduction and nuisance abatement codes. Property owners must keep lots clear of weeds, especially in fire hazard areas. The county conducts weed abatement programs and may charge owners for cleanup.
View full Castaic rules →Key Facts Comparison
| Fact | Altadena | Castaic |
|---|---|---|
| Authority | LA County Fire Code Title 32 | - |
| Max Grass/Weed Height | 3 inches | - |
| Annual Inspection | Spring (notice mailed) | - |
| Cost Recovery | Property tax assessment | - |
| Maintenance | - | Weeds must be removed |
| Fire Hazard | - | Critical in VHFHSZ areas |
| Abatement | - | County may clean and bill owner |
| Enforcement | - | County code enforcement |
Highlighted rows indicate differences between cities.
Altadena FAQ
How tall can my Altadena lawn grass be?
Under 3 inches if you are in a Very High Fire Hazard Severity Zone, per LA County Fire's defensible space rules.
Castaic FAQ
Do I have to clear weeds on my property in LA County?
Yes, if you're in a fire hazard zone (weeds must be under 3 inches within 200 feet of structures by June 1). On vacant lots, the Agricultural Commissioner may require clearance. Overgrown vegetation can also be cited as a nuisance.
What if I don't clear my weeds?
The county will hire contractors to clear the property and bill you, plus administrative fees. A lien is placed on the property for unpaid costs. In fire zones, contact LA County Fire's Forestry Division at (818) 890-5719. For other areas, call the Agricultural Commissioner at (626) 575-5471.
Who is responsible for weeds on vacant lots?
The property owner is responsible. The LA County Agricultural Commissioner sends annual notices and performs clearance on non-compliant vacant lots at the owner's expense plus a 35% administrative fee.
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