Oakland, CA Landscaping Rules: Tree Trimming (2026)
Key Facts
- Authority
- Coast live oaks 4 inches or more diameter are protected under OMC 12.36
- Permit
- All other species 9 inches or more diameter (except exempt species) require permits
- Permit
- Pruning more than 25 percent of live crown requires a permit
- Permit
- Street trees are regulated separately and always require permits
- Fee
- Replacement trees or in-lieu fees are typical permit conditions
Summary
Oakland Municipal Code Chapter 12.36 (Protected Trees) requires a permit to remove or significantly prune protected trees, including all coast live oaks 4 inches or larger in diameter and any other tree 9 inches or larger measured 4.5 feet above grade.
4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line. (2) Remove that portion of a tree that extends within 10 feet of the outlet of a chimney or stovepipe. (3) Maintain a tree, shrub, or other plant adjacent to or overhanging a building free of dead or dying wood.
Full Breakdown
OMC 12.36 is one of the stricter urban tree ordinances in the Bay Area. A protected tree is defined as any coast live oak (Quercus agrifolia) with a trunk diameter of 4 inches or greater, or any other species (except eucalyptus, Monterey pine, and a few invasives) with a trunk 9 inches or greater diameter at breast height (4.5 feet). Removal or significant pruning, meaning removal of more than 25 percent of the live crown, requires a Tree Removal Permit from the Tree Services Division of Public Works. Applications require an arborist report for larger or healthy trees and may require replacement planting. Emergency removal of trees posing immediate hazard is allowed with after-the-fact reporting within 48 hours. Street trees are separately regulated under OMC 12.32 and cannot be pruned or removed without a permit regardless of size.
Violations & Fines
Unpermitted removal of a protected tree can result in civil penalties up to 5,000 dollars per tree, plus replacement-tree requirements calculated on trunk-diameter replacement or appraised value. Stop-work orders and criminal misdemeanor charges are possible for willful violations.
Frequently Asked Questions
Can I trim my own backyard oak without a permit?
What about a dead or dangerous tree?
Sources & Official References
Other rules in Oakland
California rules heatmap·Compare Oakland to another location·View the California landscaping rules overview
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Tree Trimming in Nearby Cities
How other cities in Alameda County handle tree trimming.