Heritage & Protected Trees: Altadena vs El Monte
How do heritage & protected trees rules compare between Altadena, CA and El Monte, CA?
El Monte has fewer restrictions than Altadena.
Altadena, CA
Los Angeles County
Oak trees ≥36 inches in diameter qualify as Heritage Oaks under LA County Code Chapter 22.174 and receive heightened review. Removal is rarely approved.
View full Altadena rules →El Monte, CA
Los Angeles County
El Monte does not have a specific heritage or landmark tree ordinance. Street trees are managed by Public Works. Mature trees may receive informal protection through the development review process.
View full El Monte rules →Key Facts Comparison
| Fact | Altadena | El Monte |
|---|---|---|
| Heritage Threshold | ≥36 in DBH | - |
| Code Section | LA County Code Ch. 22.174 | - |
| Replacement Ratio | Up to 4:1 | - |
| Heritage Ordinance | - | None specific |
| Street Trees | - | City-managed |
| Development Review | - | May consider existing trees |
| Private Trees | - | Owner discretion |
Highlighted rows indicate differences between cities.
Altadena FAQ
What is a Heritage Oak in Altadena?
Any oak with a trunk 36 inches in diameter or larger under LA County Code Ch. 22.174 — these receive heightened protection.
El Monte FAQ
How is a heritage tree designated?
Based on trunk size (typically 24+ inches), species rarity, age, or historical significance. Residents may nominate trees.
Can I ever remove a heritage tree?
Only with special approval, typically from city council or tree commission. Granted mainly for safety hazards.
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