Zoning Overlays & Bonuses in Lake County, IL (2026)
1 county-level rule, plus city-specific rules for 1 city in Lake County, Illinois.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Lake County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Density Bonus Law
Unincorporated Lake County grants a 5-15% density bonus for conservation developments that set aside extra open space beyond the minimum ratio.
Lake County open-space density bonus
Some RestrictionsLake County Code § 151.125, Table 151.125(3) n.1
Cluster bonuses shall be given to developments in the AG, E, R-1, R-2, and R-3 Districts that set aside open space above the minimum requirements. A 5% density bonus (above the maximum number of units permitted by applicable density standards) is given to developments that provide at least 50% open space; a 10% density bonus is given to projects with a minimum of 60% open space; and 15% density...
Zoning Overlays & Bonuses by City in Lake County
1 cities in Lake County have their own zoning overlays & bonuses rules. Each link goes to that city's dedicated page with code citations.
All Lake County ordinances
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Lake County Ordinance Hub →