Tree Removal Permits: Altadena vs Norwalk
How do tree removal permits rules compare between Altadena, CA and Norwalk, CA?
Norwalk has fewer restrictions than Altadena.
Altadena, CA
Los Angeles County
Removing or significantly damaging a native oak with an 8-inch trunk diameter (25-inch circumference) at 4.5 ft above grade requires an Oak Tree Permit from LA County Planning under Section 22.174.040.
View full Altadena rules →Norwalk, CA
Los Angeles County
Norwalk requires permits to remove trees above a certain size on private property. Protected species and street trees have additional restrictions.
View full Norwalk rules →Key Facts Comparison
| Fact | Altadena | Norwalk |
|---|---|---|
| Code Section | LA County Code 22.174.040 | - |
| Protected Size | ≥8 in DBH | - |
| Permit Authority | LA County Planning | - |
| Required | Arborist report | - |
| Penalty | Up to $1,000/tree + 2:1 replacement | - |
| Permit Threshold | - | 6 to 12 inch DBH typical |
| Street Trees | - | City-managed, no removal |
| Hazardous Trees | - | Expedited permit available |
| Replacement | - | 2:1 or 3:1 ratio |
Highlighted rows indicate differences between cities.
Altadena FAQ
Can I cut down an oak on my Altadena property?
Only with an Oak Tree Permit from LA County Planning if the oak is ≥8 in diameter at breast height — Section 22.174.040.
Norwalk FAQ
When do I need a permit to remove a tree?
When trunk diameter exceeds the threshold (typically 6 to 12 inches). Check Norwalk tree ordinance for exact size.
Can I remove a dead tree without a permit?
Dead or hazardous trees may qualify for expedited permits. Contact Norwalk urban forestry before removal.
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