Landscaping Rules in Kendall County, IL (2026)
3 rules for unincorporated Kendall County, Illinois.
Verified from official government sources
Tree Removal & Heritage Trees
Kendall County requires developers of unincorporated subdivisions to submit a preliminary tree preservation plan with every concept plan, identifying which significant native trees will be preserved and which will be removed. County Code defines a significant tree as a listed species that is in good health and at least six or twelve inches in diameter, depending on the species.
Kendall County Tree Preservation Plan Rule
Some RestrictionsKendall County Code §§ 30-2, 36-152
Significant trees means those existing trees on a development site that are worthy of preservation. Tree species, that are in good health, identified in Sections 30-191 and 30-192 and having a diameter at one (1) foot above grade of six (6) inches or more and twelve (12) inches or more or which are identified in Section 30-193 shall be considered worthy of preservation. ... (d)The concept plan ...
Weed Ordinances
Unincorporated Kendall County has no maximum weed or grass height ordinance. When the County adopted the 2024 International Property Maintenance Code at Kendall County Code § 8-64, it affirmatively deleted Sec. 302.4, the model code's 'Weeds' provision, so no county-level height limit applies to improved lots outside the county's cities and villages.
No Weed-Height Rule in Kendall County
Few RestrictionsKendall County Code § 8-64(6)
Sec. 8-64. - International Property Maintenance Code. Amendments to the International Property Maintenance Code are as follows: (1)Sec. 101 "Title" insert "Kendall County." ... (6)Sec. 302.4 "Weeds" delete.
Native Plants
Kendall County requires new subdivisions to plant naturalized open space areas with true native vegetation, species that grew in northeastern Illinois before European settlement, and sets numeric minimums: at least ten native species in any stormwater basin or swale and at least forty native species in upland restoration areas, under Section 30-197.
Kendall County Native Plant Landscaping Standard
Some RestrictionsKendall County Code §§ 30-2, 30-197(d)(1)
Native vegetation means vegetation that originally occurred in northeastern Illinois prior to arrival of European settlers. Native plant species are identified in Plants of the Chicago Region (Swink and Wilhelm, 1994). ... (1)In order to ensure adequate diversity of plants, to respond to varying environmental and hydrologic conditions, to ensure the establishment of native landscapes that are f...
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