Grass Height Limits: Altadena vs Norwalk
How do grass height limits rules compare between Altadena, CA and Norwalk, CA?
Altadena and Norwalk have similar restriction levels.
Altadena, CA
Los Angeles County
In Altadena's Very High Fire Hazard Severity Zones, grass and weeds must be kept under 3 inches under LA County Fire Code Title 32 defensible-space rules.
View full Altadena rules →Norwalk, CA
Los Angeles County
Norwalk requires property owners to maintain grass and vegetation below maximum height limits. Overgrown yards subject to code enforcement and abatement.
View full Norwalk rules →Key Facts Comparison
| Fact | Altadena | Norwalk |
|---|---|---|
| Max Height in VHFHSZ | 3 inches | - |
| Code Section | LA County Fire Code Title 32 | - |
| Compliance Window | Year-round in VHFHSZ | - |
| Max Height | - | 6 to 12 inches typical |
| State Law | - | CA HSC §14875 |
| Notice | - | 10 to 30 day compliance |
| Abatement | - | City lien if not corrected |
Highlighted rows indicate differences between cities.
Altadena FAQ
How tall can my Altadena grass get?
Under 3 inches if you are in a Very High Fire Hazard Severity Zone — LA County Fire Code Title 32 defensible space rules. Outside VHFHSZ, no specific cap but it cannot become a public nuisance.
Norwalk FAQ
How tall can my grass be?
Most cities limit grass and weeds to 6 to 12 inches. Overgrown vegetation is a code violation.
What happens if I don’t mow?
The city issues a notice. If not corrected, they may mow and charge you via a property lien.
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