Tree Removal & Heritage Trees: Altadena vs Torrance
How do tree removal & heritage trees rules compare between Altadena, CA and Torrance, CA?
Torrance has fewer restrictions than Altadena.
Altadena, CA
Los Angeles County
Oak trees (genus Quercus) with a trunk circumference of 25 inches or more (8-inch diameter at 4.5 ft above grade) are protected — removal, damage, or encroachment into the protected zone requires an Oak Tree Permit under LA County Code Chapter 22.174.
View full Altadena rules →Torrance, CA
Los Angeles County
Torrance requires a permit for any maintenance, trimming, cutting, or removal of street trees under TMC Section 75.1.5. Work must be performed by city-approved contractors at the property owner's expense. Permits valid for 30 days. The Model Water Efficient Landscape Ordinance applies to landscaping projects over 500 sq ft. Hedges limited to 4 feet under TMC 92.13.1.
View full Torrance rules →Key Facts Comparison
| Fact | Altadena | Torrance |
|---|---|---|
| Code Section | LA County Code Ch. 22.174 | - |
| Protected Size | ≥8 in DBH / 25 in circumference | - |
| Protected Zone | 5 ft outside dripline | - |
| Replacement | 2:1 typical | - |
| Heritage Oak | ≥36 in diameter | - |
| Street Trees | - | Permit required (TMC 75.1.5) |
| Permit Valid | - | 30 days |
| Hedge Height | - | 4 ft max (TMC 92.13.1) |
| MWELO Threshold | - | 500+ sq ft |
Highlighted rows indicate differences between cities.
Altadena FAQ
Do I need a permit to remove an oak in Altadena?
Yes if the oak is 8 inches in diameter or larger at 4.5 feet above grade — LA County Code Ch. 22.174 (Oak Tree Permits) applies.
Torrance FAQ
Do I need a permit to remove a tree in Torrance?
Yes, for any street tree. Obtain a permit from Public Works (310-781-6900). Work must be done by a city-approved contractor at your expense.
Can I trim my own street tree in Torrance?
No. All street tree work requires a permit and must be performed by a city-approved professional tree contractor.
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