Landscaping Rules in DuPage County, IL (2026)

3 county-level rules, plus city-specific rules for 1 city in DuPage County, Illinois.

Verified from official government sources

Note: These county rules apply to unincorporated areas of DuPage County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Tree Removal & Heritage Trees

Developers in unincorporated DuPage County must replant any preserved tree that dies or is destroyed, matching its caliper with new trees of the same minimum size.

DuPage County Tree Replacement on Removal

Some Restrictions

DuPage County Code § 8-129.6(3)

Trees identified on the approved landscape plan for preservation which are inadvertently or intentionally destroyed, or are dying or dead, as determined by the County at any time up to and including the second landscape inspection, shall be removed, and replaced with new plantings in the following manner: a. Replace the total caliper of dead or dying trees with trees of the minimum size as spec...

Full ordinance details →Official source ↗

Water Restrictions

DuPage County's public water utility bans unrestricted lawn sprinkling from May 15 through September 15, limiting outdoor watering to before 10 a.m. or after 7 p.m. on an odd/even schedule tied to street address and calendar day.

DuPage County Odd-Even Lawn Watering Rule

Some Restrictions

DuPage County Code Sec. 36-347 (Water Conservation Practices)

...unrestricted lawn sprinkling will not be allowed from May 15 to September 15 of each year. ... Outside watering shall not be used on any day between the hours of 10:00 a.m. and 7:00 p.m., when evaporation is at its highest. Outside watering will be allowed before 10:00 a.m. or after 7:00 p.m., as determined by street number and day of the month (odd/even sequence). Odd street addresses may w...

Full ordinance details →Official source ↗

Native Plants

Unincorporated DuPage County adopted the International Property Maintenance Code but struck its weeds section entirely, so property owners there face no county mowing or vegetation-height requirement standing in the way of native or naturalized landscaping.

DuPage County Has No Weed-Height Ordinance

Few Restrictions

DuPage County Code § 8-900, item 3.b (adopting IPMC 2021, Art. IX)

b.Subsection 302.4, "Weeds," and 302.8, "Motor Vehicles," of Section 302 "Exterior Property Areas," are deleted in their entirety.

Full ordinance details →Official source ↗

Landscaping Rules by City in DuPage County

1 cities in DuPage County have their own landscaping rules rules. Each link goes to that city's dedicated page with code citations.

NapervillePop. 149,540

6 verified rules • Composting, Native Plants

All DuPage County ordinances

See every category we cover for DuPage County: parking, noise, fences, fires, animals, pools, and more.

DuPage County Ordinance Hub →