Martinez, CA Landscaping Rules: Tree Removal & Heritage Trees (2026)

Martinez regulates tree removal through its zoning ordinance and protected tree provisions. Trees designated as "protected" generally include: native oaks (valley oak, coast live oak, blue oak) above specified DBH (diameter at breast height, measured 4.5 ft above grade) — typically 10 inches for multi-trunk native trees and 16 inches for single-trunk; heritage trees designated by the City; and any tree located within a required landscape buffer or street tree program. Removal requires a Tree Removal Permit from the Martinez Planning Division, which evaluates factors including tree health, hazard potential, impact on neighboring properties, and availability of alternatives (pruning, structural support). Mitigation is typically required — either replacement planting at 1:1 or 2:1 ratio with minimum 24-inch box specimens, or in-lieu fees to the city's tree fund. Hazardous trees posing imminent risk may be removed without a full permit process, but require an arborist report documenting the hazard and after-the-fact notification to the Planning Division. Unpermitted removal of a protected tree can result in fines up to $5,000 per tree plus mandatory replacement at enhanced ratios (e.g., 3:1). Street trees in the public right-of-way fall under Public Works jurisdiction and require a separate permit. Tree pruning exceeding 25% of canopy without a permit may be considered constructive removal. Note: California Civil Code §833–§834 governs boundary trees — neighbors share rights in trees on property lines and must consent to removal.