Lee's Summit, MO Property Maintenance: Vacant Lot Maintenance (2026)
Key Facts
- General limit
- 10 inches, applies to vacant lots too
- Large-tract exemption
- Single contiguous tract over 10 acres
- Exemption limit
- Not intersected by any public roadway
- Buffer still enforced
- 50 ft from roads/adjoining developed lots
- Ag exemption
- 10+ feet from non-ag zoning district
- City abatement
- City may cut and bill the owner
Summary
Lee's Summit applies its 10-inch weed cap to vacant and undeveloped lots too, but Sec. 16-203 exempts large contiguous undeveloped tracts over 10 acres, except within 50 feet of a road or an adjoining residential or commercial lot line, where the limit still applies and the city can abate and bill the owner.
This section shall not apply to: A.Vegetation cultivated for agricultural purposes which is more than ten (10) feet distant from a non-agriculturally zoned district; orB.Undeveloped tracts of land zoned other than for agricultural uses if such tract is one (1) contiguous tract, not intersected by any public roadway and is greater than ten (10) acres, provided that all areas within fifty (50) feet from the edge of pavement of a public roadway(s), or within fifty (50) feet of the property line(s) adjacent to any property being used for residential or commercial purposes shall be maintained free from weeds or plant growth in excess of ten (10) inches. Weeds shall be defined as all grasses, annual plants and vegetation, other than trees or shrubs provided; however, this term shall not include cultivated flowers and gardens.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 55 | Unified Development Ordinance: Supplement 15).
Full Breakdown
Vacant and unimproved lots fall under the same Property Maintenance Code weed rule as built lots. 4, caps weeds and plant growth at 10 inches on 'premises and exterior property' generally, a term that includes vacant parcels, and separately bans noxious weeds outright. The section carries a specific exemption built for large tracts: an undeveloped tract zoned other than for agricultural use is excused from the 10-inch cap if it is a single contiguous tract, is not intersected by any public roadway, and is greater than 10 acres.
That exemption is not absolute, however; even on a qualifying large tract, the code requires the owner to keep everything within 50 feet of the edge of pavement of an adjoining public roadway, and everything within 50 feet of a property line next to a residential or commercial use, cut to 10 inches or less. A separate carve-out covers agricultural vegetation more than 10 feet from a non-agricultural zoning district. 3.
Violations & Fines
An unresponsive owner of a vacant lot faces the same path as any other property: prosecution under Section 106.3 and the fine schedule in Sec. 16-104, starting at $50 for a first offense and rising to $500 for a fourth or later offense at the same location, plus up to 90 days in jail, in addition to being billed for any city-ordered abatement of the growth.
Frequently Asked Questions
Does the 10-inch weed rule apply to a vacant lot I'm not building on?
How big does my undeveloped lot have to be to skip the mowing rule?
If my large lot is exempt, is any part of it still subject to the 10-inch cap?
What happens if I ignore a weed notice on a vacant lot?
Sources & Official References
Other rules in Lee's Summit
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Vacant Lot Maintenance in Nearby Cities
How other cities in Jackson County handle vacant lot maintenance.