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San Mateo, CA Tree Protection: Tree Removal Permits (2026)

Heavy Restrictions

Verified 1 month ago|Source: San Mateo Protected Trees — Ch. 13.40 →

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Key Facts

Heritage Tree Permit: Required for protected trees
Oak Threshold: 10 in diameter at 54 in above grade
Other Species: 15 in diameter at 54 in
Street Trees: Public Works approval required
Non-Heritage: No permit needed if below thresholds

San Mateo requires permits for removing protected trees under Chapter 13.40. Heritage Trees (oaks 10+in, others 15+in diameter) and Street Trees cannot be removed without city approval. Standard private trees below heritage thresholds do not require removal permits.

Full Breakdown

Tree removal in San Mateo is regulated through Chapter 13.40 (Protected Trees). Heritage Trees — oaks with 10+ inch diameter and other species with 15+ inch diameter measured at 54 inches above grade — require city approval before removal. Street trees in the public right-of-way cannot be removed without Public Works authorization. Trees designated through planning applications are also protected. Trees below the heritage size thresholds on private property may generally be removed without a city permit. Removal of protected trees requires demonstrating that the tree is dead, diseased, or hazardous, or that removal is necessary for a development project with appropriate mitigation. Applications are reviewed by the Community Development Department. Certified Arborist reports may be required.

Violations & Fines

Removing a protected tree without approval is a serious violation. Penalties include required replacement at assessed value and potential fines.

Frequently Asked Questions

Do I need a permit to remove a tree in San Mateo?

If it is a Heritage Tree (oak 10+in, others 15+in diameter) or Street Tree, yes. Trees below heritage thresholds on private property generally do not need permits.

How do I know if my tree is a Heritage Tree?

Measure the trunk diameter at 54 inches above grade. Oaks at 10+ inches and other species at 15+ inches qualify. Contact Community Development at 650-522-7200.

Can I remove a dead protected tree?

A dead or hazardous protected tree may be approved for removal with documentation, typically including a Certified Arborist report.

How does San Mateo compare?

See how San Mateo's tree removal permits rules stack up against other locations.

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San Mateo, CA Tree Protection: Tree Removal Permits (2026)

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