Mobile, AL Tree Protection: Heritage & Protected Trees (2026)
Key Facts
- Live oak threshold
- 18 inches DBH
- Historic district threshold
- 8 inches DBH
- Permit required
- Before trim, removal, or relocation
- Issuer
- City urban forester
Summary
Mobile designates certain live oaks and eight other species as protected 'heritage trees' once they reach 18 inches DBH (8 inches in historic districts), a status that triggers the city's tree permit requirements.
Heritage live oak tree: A live oak tree which is at least eighteen (18) inches DBH.
Heritage tree, existing: Any of the following list of trees which is at least eighteen (18) inches DBH: hickory (Carya spp.); longleaf pine (Pinus palustris); magnolia (Magnolia spp.); oak (Quercus spp.), excluding water oak (Quercus nigra); river birch (Betula nigra); sweet gum (Liquidambar styraciflua); sycamore (Platanus occidentalis); and yellow poplar (Liriodendron tulipifera). In historic districts, heritage trees include the species previously noted, but have a minimum size of at least eight (8) inches DBH.
Heritage tree, credit or compliance: any tree planted or claimed for credit for compliance with the UDC or tree planting and landscaping requirements of the city.
Historic district: A geographic area designated by the city council as a historic district, including all historic districts existing as of the date of this chapter and future districts designated by the city council.
Land clearing: Those operations where trees and vegetation are removed and which occur previous to the construction of building; e.g., road right-of-way excavation or paving, lake and drainage system excavation, utility excavation, grubbing, and any other necessary clearing operations.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 67).
Full Breakdown
Under Sec. 65-2, a 'heritage live oak tree' is any live oak at least 18 inches DBH, measured 4.5 feet above grade. A separate 'heritage tree, existing' definition extends the same 18-inch threshold (8 inches in historic districts) to eight other named species. Reaching heritage status subjects a tree to the removal, trimming, and relocation permit requirements of Sec. 65-6, administered by the city's urban forester.
Violations & Fines
Damaging, cutting, or removing a designated heritage tree without a permit is 'tree abuse' under Sec. 65-10, punishable by up to a $500 fine, three months' jail, or community service.
Frequently Asked Questions
How big does a live oak have to be to count as a heritage tree?
Can I remove a heritage tree from historic-district property?
Sources & Official References
Other rules in Mobile
Compare Mobile to another location·View the Alabama tree protection overview
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