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ISA Certified Arborist — Serving the Bay Area
Call: (415) 881-0124
26 cities • Verified Ordinance Data

Do I Need a
Tree Permit?

Answer 3 quick questions. We’ll check your tree against your city’s actual ordinance.
General guidance based on publicly available ordinance data verified as of March 2026. Not legal advice. Tree ordinances change — always confirm with your city before scheduling work. Methodology .
Michael Schuck
Michael Schuck — ISA Certified Arborist WE-15750A
Ordinance data for 26 cities sourced from municipal codes & city websites
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Checking permit requirements before tree work is essential for Bay Area homeowners. According to Michael Schuck, ISA Certified Arborist WE-15750A, start by measuring your tree's trunk diameter at 4 feet 6 inches above ground (standard measurement point). Identify the species by consulting a local arborist or tree guide. Check your city's website or contact Planning/Forestry for specific protected tree thresholds. Most cities provide free determination letters confirming whether your tree is protected (2–3 week turnaround). Request your determination letter in writing to document compliance. If your tree appears unprotected, trim the branch or schedule removal. If protected, obtain a permit before work begins—permitting typically takes 1–4 weeks and may require an arborist assessment ($300–$500). Permits cost $50–$150. Hiring a contractor familiar with your city's requirements simplifies the process and ensures full compliance.
Checking permit requirements before tree work is essential for Bay Area homeowners to avoid costly violations. According to Michael Schuck, ISA Certified Arborist WE-15750A, start by measuring your tree's trunk diameter at four feet six inches above ground. Identify the species by consulting a local arborist or tree guide. Check your city's website or contact Planning/Forestry for protected tree thresholds. Most cities provide free determination letters confirming whether your tree is protected (two to three week turnaround). Request your determination letter in writing to document compliance. If your tree appears unprotected, trim or schedule removal. If protected, obtain a permit before work—permitting typically takes one to four weeks and may require an arborist assessment ($300–$500). Permits cost $50–$150.