Zoning Overlays & Bonuses in DuPage County, IL (2026)
1 county-level rule, 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.
Density Bonus Law
In the R-5 General Residence District, DuPage County lets developers build one extra dwelling unit for every low- and moderate-income unit provided, up to a 25% increase over the base zoning lot yield under Zoning Ordinance Sec. 37-705.3(A).
DuPage County Affordable Housing Density Bonus
Some RestrictionsDuPage County Zoning Ordinance Sec. 37-705.3(A)
Where a property owner/developer elects to provide for the construction of housing which is affordable to low and moderate income families, a density bonus shall be provided allowing an increase of one (1) dwelling unit for each low and moderate income unit so provided, which increase shall not be greater than twenty-five percent (25%) of the number of dwelling units permitted as determined by ...
Zoning Overlays & Bonuses by City in DuPage County
1 cities in DuPage County have their own zoning overlays & bonuses rules. Each link goes to that city's dedicated page with code citations.
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