35 Bay Area cities

San Mateo County — 10 Cities

Tree service data for San Mateo County cities

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
Atherton	6 neighborhoods	55% avg	10" oaks / 12" others	Low fire · Low SOD	Permit guide →
Belmont	6 neighborhoods	35% avg	12" specimen trees	Low fire · Low SOD	Permit guide →
Burlingame	10 neighborhoods	40% avg	12" (all)	Low fire · Low SOD	Permit guide →
Hillsborough	8 neighborhoods	48% avg	18" / 12" natives	Low fire · 6 high SOD	Permit guide →
Menlo Park	8 neighborhoods	38% avg	10" oaks / 15" others	Low fire · 3 high SOD	Permit guide →
Redwood City	8 neighborhoods	37% avg	12" (all)	Low fire · 3 high SOD	Permit guide →
Foster City	5 neighborhoods	28% avg	Lagoon-adjacent protection	Low fire · Low SOD	Permit guide →
San Carlos	8 neighborhoods	38% avg	11" / 10" heritage	Low fire · Low SOD	Permit guide →
San Mateo	8 neighborhoods	37% avg	10" oaks / 15" others	Low fire · Low SOD	Permit guide →
Woodside	8 neighborhoods	55% avg	~12" / ~8" natives	3 fire zones · 8 high SOD	Permit guide →

Santa Clara County — 10 Cities

Tree service data for Santa Clara County cities

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
Campbell	8 neighborhoods	34% avg	~6" at 24" height	Low fire · Low SOD	Permit guide →
Cupertino	8 neighborhoods	38% avg	12" (multi-trunk formula)	Low fire · 2 high SOD	Permit guide →
Los Altos	8 neighborhoods	40% avg	12" / 10" natives	Low fire · Low SOD	Permit guide →
Los Gatos	8 neighborhoods	41% avg	12" (hillside stricter)	2 fire zones · 2 high SOD	Permit guide →
Milpitas	8 neighborhoods	30% avg	18" (protected spp)	Low fire · Low SOD	Permit guide →
Mountain View	8 neighborhoods	34% avg	~4" oak/redwood/cedar	Low fire · Low SOD	Permit guide →
Palo Alto	20 neighborhoods	38% avg	11.5" oaks / 15" others	1 fire zone · 6 high SOD	Permit guide →
San Jose	8 neighborhoods	36% avg	12" (heritage designated)	Low fire · 2 high SOD	Permit guide →
Santa Clara	8 neighborhoods	28% avg	12" specimen / 38" general	Low fire · Low SOD	Permit guide →
Saratoga	8 neighborhoods	47% avg	18" / 10" natives	2 fire zones · 3 high SOD	Permit guide →
Sunnyvale	8 neighborhoods	30% avg	12" oaks / 18" others	Low fire · Low SOD	Permit guide →

Alameda County — 5 Cities

Tree service data for Alameda County cities

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
Berkeley	7 neighborhoods	42% avg	18" circumference (Coast Live Oak)	VHFHSZ fire zones · Complex permitting	Permit guide →
Fremont	8 neighborhoods	30% avg	Heritage trees ≥35" circumference	Low fire · Low SOD	Permit guide →
Hayward	7 neighborhoods	32% avg	Native oaks / hillside overlay	Hillside fire zones · Low SOD	Permit guide →
Oakland	8 neighborhoods	45% avg	4" trunk diameter oaks / 9" trunk diameter natives	Up to $1M penalties · $434.20 fee	Permit guide →
Piedmont	4 neighborhoods	48% avg	Heritage program (public only)	Low fire · No private permit required	Permit guide →

San Francisco — 1 City

Tree service data for San Francisco

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
San Francisco	12 neighborhoods	14% avg	All street trees / significant trees	Urban density · Complex permitting	Permit guide →

Marin County — 3 Cities

Tree service data for Marin County cities

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
Mill Valley	5 neighborhoods	52% avg	6" trunk diameter (all species)	WUI fire zones · 4 high SOD	Permit guide →
San Rafael	6 neighborhoods	42% avg	6" trunk diameter heritage trees	VHFHSZ fire zones · 3 high SOD	Permit guide →
Tiburon	4 neighborhoods	48% avg	8" trunk diameter protected species	WUI fire zones · 2 high SOD	Permit guide →

Contra Costa County — 5 Cities

Tree service data for Contra Costa County cities

City	Coverage	Canopy	Permit Threshold	Risk	Permit Guide
Danville	6 neighborhoods	40% avg	Valley oaks / semi-rural zones	WUI fire zones · Low SOD	Permit guide →
Lafayette	7 neighborhoods	45% avg	Oak woodland / hillside overlay	VHFHSZ fire zones · Low SOD	Permit guide →
Orinda	5 neighborhoods	50% avg	WUI zones / Diablo foothills	VHFHSZ fire zones · Moderate SOD	Permit guide →
Pleasant Hill	5 neighborhoods	35% avg	Creek-adjacent / native protection	Low fire · Low SOD	Permit guide →
Walnut Creek	8 neighborhoods	42% avg	Heritage ≥75" circumference	WUI fire zones · Low SOD	Permit guide →

Data from 175+ neighborhoods across 35 cities, verified June 2026. Written by Michael Schuck, ISA Certified Arborist WE-15750A.