Tree Removal & Heritage Trees: Castaic vs Norwalk
How do tree removal & heritage trees rules compare between Castaic, CA and Norwalk, CA?
Norwalk has fewer restrictions than Castaic.
Castaic, CA
Los Angeles County
LA County Code Title 22, Chapter 22.174 protects oak trees in unincorporated areas. Removing, damaging, or encroaching on any oak tree 8 inches or more in diameter requires an Oak Tree Permit from the Department of Regional Planning.
View full Castaic rules →Norwalk, CA
Los Angeles County
Norwalk regulates tree removal on private property through permits and size thresholds. Street trees are city-managed and cannot be removed by residents.
View full Norwalk rules →Key Facts Comparison
| Fact | Castaic | Norwalk |
|---|---|---|
| Code | Title 22, Ch. 22.174 | - |
| Protected Size | 8 inches diameter | - |
| Measurement | At 4.5 feet above grade | - |
| Permit From | Regional Planning | - |
| Replacement Ratio | 2:1 minimum | - |
| Permit Threshold | - | 6 to 12 inch trunk diameter |
| Street Trees | - | City-managed only |
| Replacement | - | Required for removed trees |
| Hazardous Trees | - | Expedited process |
Highlighted rows indicate differences between cities.
Castaic FAQ
Do I need a permit to remove an oak tree in unincorporated LA County?
Yes. Any oak tree 8 inches or more in diameter (25 inches circumference) measured at 4.5 feet above grade requires an Oak Tree Permit from the Department of Regional Planning before removal or pruning.
What happens if I remove a protected oak tree without a permit?
Unauthorized removal is a misdemeanor with fines up to $1,000 per tree and/or jail time. You may also be ordered to plant replacement trees at a 10:1 ratio.
Norwalk FAQ
Do I need a permit to remove a tree?
If the trunk exceeds the size threshold (typically 6 to 12 inches), yes. Check Norwalk tree ordinance for details.
Who handles street trees?
Norwalk public works or urban forestry manages all trees in the public right-of-way.
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