Zoning Overlays & Bonuses in Cook County, IL (2026)

2 county-level rules, plus city-specific rules for 1 city in Cook County, Illinois.

Verified from official government sources

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

Specific Plans Overview

Cook County's Land Use Policy Plan and Chapter 102 zoning ordinance set district categories and standards for unincorporated areas, while each suburban municipality maintains its own comprehensive plan and zoning ordinance under Illinois Municipal Code authority.

Cook County Land Use and Comprehensive Plan

Some Restrictions

Full ordinance details →Official source ↗

Density Bonus Law

Cook County does not maintain a countywide density bonus ordinance, but the Affordable Housing Planning and Appeal Act (310 ILCS 67) and IHDA programs allow developers to seek density relief in certain non-exempt municipalities, plus voluntary suburban inclusionary programs.

Affordable Housing Density Bonus Programs

Few Restrictions

Full ordinance details →Official source ↗

Zoning Overlays & Bonuses by City in Cook County

1 cities in Cook County have their own zoning overlays & bonuses rules. Each link goes to that city's dedicated page with code citations.

ChicagoPop. 2,696,555

3 verified rules • Density Bonus Law, Specific Plans Overview

All Cook County ordinances

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

Cook County Ordinance Hub →