Tree Protection in Austin, TX: What Residents Actually Need to Know

If you live in Austin or are thinking about moving there, tree protection are one of those things you probably won't think about until they affect you directly. Austin has 5 specific rules on the books covering different aspects of tree protection, and some of them might surprise you.

Protected Tree Species

Austin City Code Chapter 25-8 protects every tree 19 inches DBH or larger, with heritage status for 24-inch protected species like live oak, pecan, bald cypress, and Texas ash; removal requires a permit, mitigation, and often arborist review, with fines up to $1,000 per inch.

Key details: Local ordinance: Austin Code Ch. 25-8. Protected size: 19-inch DBH minimum. Heritage size: 24 inches plus protected species. Top species: Live oak, pecan, cypress. Fine cap: $1,000 per DBH inch.

Unpermitted Protected Tree removal is a class C misdemeanor under Chapter 25-8 with fines up to $1,000 per DBH inch, plus replacement plantings or fee-in-lieu of $200-$300 per inch into the Urban Forest Replenishment Fund.

Compared to other cities, Austin takes a harder line on protected tree species. The enforcement and penalty structure reflects that.

Parkway Planting

Austin City Arborist and Urban Forestry program control planting in the parkway strip between sidewalk and street under City Code Chapter 25-7 and Transportation Department right-of-way rules. Approved species lists, clearance standards, and free street tree programs guide residents.

Key details: Authority: Austin City Arborist office. Code chapter: Austin Code Chapter 25-7. Approved species: City Arborist list required. Free trees: TreeFolks NeighborWoods. Maintenance: Adjacent owner responsibility.

Planting unapproved species, blocking sight lines, or removing a parkway tree without permit violates Chapter 25-7 and right-of-way rules. Citations carry fines up to two thousand dollars per day, plus replacement cost recovery and tree-mitigation fees billed to the resident.

Tree Removal Permits

Austin City Code Title 25, Chapter 25-8, Subchapter B (Tree and Natural Area Protection) requires a permit to remove any protected tree. Trees with a trunk diameter of 19 inches or more (measured at 4.5 feet above ground) are classified as protected. A tree removal permit from the City Arborist must be obtained before removal. Permit applications require a tree survey, justification for removal, and a mitigation plan. Emergency removals for immediate safety hazards may proceed without prior permit but must be reported within 5 business days.

Key details: Code Section: Title 25, Ch. 25-8, Subchapter B. Protected Size: 19 inches diameter at 4.5 ft above ground. Permit Authority: City Arborist Program. Requirements: Tree survey, justification, mitigation plan. Emergency Removal: Report within 5 business days.

Removing protected trees without permits carries fines of $500–$5,000 per tree and mandatory replacement planting at 2:1 or 3:1 ratios. Unpermitted clearing on development sites may stop the project.

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

Heritage & Protected Trees

Austin's 2010 Heritage Tree Ordinance (City Code Ch. 6-3) is one of the strictest in the United States. Trees of designated species 19+ inches in diameter are Heritage Trees and cannot be removed except for imminent hazard or where a tree prevents reasonable use of the property. Protected trees (8–18 inch DBH) require a removal permit.

Key details: Heritage DBH: 19 inches DBH and larger. Heritage species: Oak, elm, pecan, walnut, bald cypress, cedar elm, ash. Protected DBH: 8–18 inch DBH (all species). Removal standard: Imminent hazard or no reasonable use. Mitigation: Up to 100% diameter replacement.

Unauthorized removal of a Heritage Tree carries administrative fines up to $20,000 per tree under Local Government Code §54.012 and Austin City Code §6-3-44, plus mandatory replacement up to 100% of trunk diameter. Cases may be referred for misdemeanor prosecution. Stop-work orders are routinely issued on adjacent construction. Repeat violators may be barred from city permits.

Compared to other cities, Austin takes a harder line on heritage & protected trees. The enforcement and penalty structure reflects that.

Tree Replacement Requirements

Austin's tree mitigation requirements under Title 25, Chapter 25-8 require replacement planting or payment into the Tree Fund when protected or heritage trees are removed. Standard protected tree mitigation is calculated based on the diameter of the removed tree using a caliper-inch replacement formula. Heritage trees require a higher mitigation ratio. Developers may plant replacement trees on-site, off-site at an approved location, or pay into the City's Tree Mitigation Fund. The fund is used for tree planting in underserved areas.

Key details: Code Section: Title 25, Ch. 25-8. Method: Caliper-inch replacement formula. Options: On-site planting, off-site planting, or Tree Fund payment. Heritage Trees: Higher mitigation ratio required. Tree Fund: Used for planting in underserved areas.

Failure to plant required replacements within 6 months: $200–$500 per tree plus ongoing penalties. Replacement trees that die within 2 years must be re-planted.

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

The Bottom Line

Austin is tougher than many cities when it comes to tree protection. Out of the 5 rules covered here, 4 are rated strict. If you are a homeowner, renter, or business owner in Austin, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

All of the above reflects Austin's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.