Landscaping Rules in Oak Lawn, IL

If you live in Oak Lawn or are thinking about moving there, landscaping rules are one of those things you probably won't think about until they affect you directly. Oak Lawn has 4 specific rules on the books covering different aspects of landscaping rules, and some of them might surprise you.

Weed Ordinances

Oak Lawn caps weeds at 4 inches tall on private property, the abutting parkway, and abutting alleys, and can cut them itself and bill the owner.

Key details: Max weed height: 4 inches. Covers: lot, parkway, abutting alley. Village-cut notice: 3 days by mail + posting. Unpaid bill: becomes a lien, 12%/yr. Exemption: designated botanical/ecological areas.

Weeds over 4 inches on your lot, parkway, or abutting alley violate § 8-6-3. The Village can cut them after 3 days' notice and bill you; unpaid bills become a recorded property lien at 12% annual interest under § 8-6-4.

Water Restrictions

From May 15 through September 15, Oak Lawn limits lawn and garden watering to set morning/evening hours on an odd/even address schedule, with automatic sprinklers confined to a narrow overnight window.

Key details: Season: May 15 through September 15. Manual watering: 7-11 a.m. or 7-11 p.m., odd/even. Automatic sprinklers: Midnight to 5:00 a.m. only. Emergency Tier II: Total watering ban possible. Fine range: $50 to $750 per offense.

Fine of not less than $50 nor more than $750 per offense; each day a violation occurs or continues is a separate offense (§ 9-4C-10(F)).

Tree Removal & Heritage Trees

Oak Lawn has no standalone permit to cut down a tree on private property, but building permits for new construction or additions won't issue until a tree preservation plan is filed and approved by the village forester.

Key details: Trigger: New building or addition permit application. Reviewer: Village forester approval required. No permit needed: For routine private tree removal. Disease season ban: Red oaks Apr 1-Jul 31; elms Mar-Oct.

No building permit issues until the village forester approves the tree preservation plan required by § 6-1A-2(J), effectively blocking construction until the plan is on file and accepted.

Tree Trimming

Trees overhanging a sidewalk, street, alley or parkway in Oak Lawn must be trimmed to set minimum clearance heights, and owners who ignore a Village abatement notice face daily fines under the sight-restriction rule.

Key details: Sidewalk clearance: At least 10 feet. Minor street clearance: At least 12 feet. Major street clearance: At least 16 feet. Penalty: $10-$500 per day, per offense. Notice period: 10 days before Village abates.

Fined $10 to $500 per offense, with each day of noncompliance a separate offense, after 10 days' written notice from the office of quality control; the Village may also enter the property, cut the branches, and lien the owner.

The Bottom Line

Oak Lawn's landscaping rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Oak Lawn is broadly strict or permissive.

This guide is based on Oak Lawn's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.