Tree Protection in Los Angeles, CA: What Residents Actually Need to Know

If you live in Los Angeles or are thinking about moving there, tree protection are one of those things you probably won't think about until they affect you directly. Los Angeles has 7 specific rules on the books covering different aspects of tree protection, and some of them might surprise you.

Protected Tree Species

LAMC §17.05 (Native Tree Protection Ordinance) protects native oaks, sycamores, walnuts, and California junipers measuring four inches DBH or larger. Removal requires a Bureau of Street Services permit and a four-to-one replacement ratio, even on private property.

Key details: Authority: LAMC §17.05. Species: Oak, sycamore, walnut, juniper. Threshold: Four-inch DBH or heritage. Replacement: Four-to-one ratio. Permit issuer: Bureau of Street Services.

Unpermitted removal or excessive pruning of protected natives can result in misdemeanor citations, fines up to $10,000 per tree, replacement at 10:1 ratio, and stop-work orders on connected projects.

This is not one of those rules that cities tend to ignore. Los Angeles actively enforces its protected tree species requirements.

Parkway Planting

LAMC §62.169 requires a Bureau of Street Services permit before planting, removing, or replacing any tree in the parkway strip between the curb and sidewalk. Species must come from the City's Designated Street Trees list matched to the block.

Key details: Authority: LAMC §62.169. Permit: Free, Bureau of Street Services. Species list: Designated Street Trees. Owner duty: Water three years. Pruning: City handles structural.

Planting without a permit, choosing non-listed species, or improper installation can trigger Urban Forestry removal at owner expense, plus citations and fees under LAMC §62.169.

Urban Forest Equity

LA's urban forest equity program partners with City Plants and LADWP to plant free shade trees in disadvantaged communities, alongside Cool Streets LA reflective pavement. The City targets 50% canopy cover by 2028 in low-canopy neighborhoods.

Key details: Partner: City Plants nonprofit. Funder: LADWP and city budget. Pavement: Cool Streets LA. Goal: 50% canopy by 2028. Cost: Free to residents.

Program participation is voluntary, so there are no penalties; failing to water a free tree may forfeit replacement, and intentional damage to City-planted trees triggers LAMC §62.169 enforcement.

Los Angeles is more permissive than most cities when it comes to urban forest equity. That said, there are still limits.

Tree Replacement Requirements

When protected tree removal is permitted, LAMC 46.03 requires replacement plantings. Each replacement tree must be at least a 15-gallon specimen, 1+ inch diameter at one foot above base, and 7+ feet tall. The number of replacement trees is determined by the Board of Public Works based on the size and species of the removed tree. Replacement trees must be maintained by the property owner.

Key details: Minimum Size: 15-gallon, 1-inch diameter, 7 ft tall. Number: Set by Board of Public Works. Code Section: LAMC 46.03. Maintenance: Property owner responsibility. Standard: Based on removed tree size/species.

Failure to replace: $250 to $1,000 per tree plus required planting. Fee-in-lieu non-payment: lien on property.

This is one of the stricter rules in Los Angeles's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Tree Removal Permits

LAMC Article 6 (Sections 46.00-46.06) requires a permit from the Board of Public Works for removal or relocation of any protected tree or shrub. Protected species include those with 4+ inch cumulative diameter at 4.5 feet. Applications must include a plot plan showing all protected trees. Street tree removal requires separate authorization from StreetsLA.

Key details: Permit Required: Board of Public Works. Size Threshold: 4+ inches cumulative diameter at 4.5 ft. Code Section: LAMC 46.00-46.06. Plot Plan: Required with application. Street Trees: StreetsLA authorization needed.

Unauthorized removal: $500 to $10,000 per tree depending on size and species. Replacement planting required at 2:1 or 3:1 ratio.

Compared to other cities, Los Angeles takes a harder line on tree removal permits. The enforcement and penalty structure reflects that.

Tree Ordinances

The City of Los Angeles protects native trees and shrubs under LAMC Section 46.00 (Protected Tree and Shrub Regulations) and Article 6 of the LAMC. Protected species include native oaks, Southern California Black Walnut, Western Sycamore, and California Bay trees measuring 4 inches or more in cumulative diameter at 4.5 feet above ground. Removal requires a permit from the Board of Public Works with replacement planting at a 4:1 ratio.

Key details: Governing Code: LAMC Section 46.00 and Article 6. Protected Species: Native oaks, Black Walnut, Western Sycamore, California Bay. Size Threshold: 4 inches cumulative diameter at 4.5 feet above ground. Replacement Ratio: 4:1 minimum (Board of Public Works policy). Permit Authority: Board of Public Works.

Unauthorized removal of protected trees can result in penalties including fines, criminal prosecution, required replacement planting at enhanced ratios, and project delays for development. Each tree removed without a permit may constitute a separate violation.

This is one of the stricter rules in Los Angeles's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Heritage & Protected Trees

Los Angeles protects four native species – Oak (Quercus), Western Sycamore, Southern California Black Walnut, and California Bay – with a trunk circumference of four feet or more (roughly 15 inches DBH). Removal, relocation, or damage requires a Board of Public Works permit, an arborist report, and 4:1 replacement.

Key details: DBH threshold: 4-foot trunk circumference (~15 inch DBH). Protected species: Native oak, sycamore, black walnut, bay. Permit: Board of Public Works approval required. Replacement: 4:1 ratio with 24-inch box stock. Arborist report: Certified arborist report mandatory.

Unpermitted removal or damage of a protected native tree is a misdemeanor punishable by fines up to $1,000 per tree, six months in jail, and mandatory replacement at up to 10:1 ratio. Civil penalties may add the appraised tree value (often $10,000+). Repeat violators face stop-work orders on associated construction.

This is not one of those rules that cities tend to ignore. Los Angeles actively enforces its heritage & protected trees requirements.

The Bottom Line

Los Angeles is tougher than many cities when it comes to tree protection. Out of the 7 rules covered here, 5 are rated strict. If you are a homeowner, renter, or business owner in Los Angeles, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

These rules come from Los Angeles's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.