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Mobile, AL Tree Protection: Heritage & Protected Trees (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 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.

View official code

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?
At least 18 inches in diameter measured 4.5 feet above grade (DBH), per Sec. 65-2's 'heritage live oak tree' definition.
Can I remove a heritage tree from historic-district property?
Only with an urban forester permit, granted for safety risk, architectural-review-board-certified renovation, or proven extreme hardship under Sec. 65-6(a)(8).

Sources & Official References

Other rules in Mobile

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