Oak Lawn, IL Tree Protection: Protected Tree Species (2026)
Key Facts
- Applies to
- Utility tree trimming in Village rights-of-way
- Protection tools
- Higher poles, side arm extensions, covered wire
- Decision
- Village decides case by case, discretionary
- Remedy for damage
- ISA-formula compensation plus permit cancellation
Summary
When utilities install or maintain lines in Oak Lawn's public right-of-way, the Village can require extra protection for specimen trees or trees of special significance, using higher poles, side arm extensions, or covered wire instead of cutting them.
C. Specimen Trees Or Trees Of Special Significance: The village may require that special measures be taken to preserve specimen trees or trees of special significance. The required measures may consist of higher poles, side arm extensions, covered wire or other means.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Code current through: Ord. 26-09-22, passed April 28, 2026).
Full Breakdown
Under Village Code § 9-1E-17, utilities other than electric companies must get a tree-trimming permit before pruning trees in Oak Lawn's public rights-of-way, using a certified arborist and facing compensation liability for damaged or unauthorized removals. Subsection C singles out "specimen trees or trees of special significance" for added protection: the Village can require the utility to use higher poles, side arm extensions, covered wire, or other alternatives instead of cutting or radically pruning these trees. The determination is discretionary and made case by case as permits are reviewed.
Violations & Fines
Utilities that damage or remove a specimen or significant tree without authorization owe the Village compensation calculated under the International Society of Arboriculture formula, and risk permit cancellation.
Frequently Asked Questions
Does this protect trees on private property?
Who decides which trees count as 'specimen' or 'special significance'?
Sources & Official References
Other rules in Oak Lawn
Compare Oak Lawn to another location·View the Illinois tree protection overview
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How other cities in Cook County handle protected tree species.