Lake County, IL Property Maintenance: Vacant Lot Maintenance (2026)
Key Facts
- Height limit
- 10 inches
- Covers
- platted subdivisions, incl. vacant lots
- Max fine
- up to $1,000/day
- Enforcement
- notice, then county abatement
- Governing section
- Lake County Code § 94.05(C)
Summary
Lake County code caps grass and weeds at ten inches on any property inside a platted subdivision, vacant lots included, making taller growth a public nuisance subject to notice, abatement, and daily fines.
High grass and/or weeds. It is a public nuisance to fail to maintain a property free from grass and/or weed growth in excess of ten inches in height within platted subdivisions. Excluded from this provision are the following: (1) Areas preserved within an open space easement or plat-designated natural area...
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Supplement contains: Local legislation current through Ord. 26-0618, passed 6-9-2026 | State legislation current through ILCS Pamphlet 2025 #5).
Full Breakdown
Lake County Code § 94.05(C) makes it a public nuisance to fail to maintain a property free from grass and/or weed growth over ten inches in height within platted subdivisions -- a standard that reaches unimproved and vacant lots along with built lots. Natural open-space easements, county-recognized natural resource growth, and tree-line growth in natural wooded areas are excluded. Unlike several neighboring subsections of § 94.05, the weed/grass provision is not on the § 94.02 list restricted to unincorporated areas, so it applies per the enforcing county department's jurisdictional or contractual authority rather than being unincorporated-only.
Violations & Fines
Violating § 94.05(C) is enforced through Lake County's nuisance-abatement process: notice to the owner, then county abatement if uncorrected, plus fines under § 94.99/§ 10.99 of up to $1,000 per violation, with each continuing day a separate offense.
Frequently Asked Questions
How tall can grass or weeds get on a vacant lot in Lake County?
Does the weed limit apply everywhere in Lake County?
What happens if I don't cut overgrown weeds after notice?
Sources & Official References
Other rules in Lake County
Compare Lake County to another location·View the Illinois property maintenance overview
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