5 county-level rules, plus city-specific rules for 4 cities in Cook County, Illinois.
Verified from official government sources
Cook County Building Code Chapter 32 incorporates the International Fire Code and adopts NFPA standards, requiring automatic sprinkler systems in most new commercial, multi-family, and many one- and two-family dwellings under IRC R313 as locally amended.
Childcare centers in Cook County must satisfy Cook County Building Code Chapter 32 occupancy classifications and Illinois DCFS licensing under 89 Illinois Administrative Code Part 407, including egress, fire safety, sanitation, and minimum square-footage requirements.
Cook County Building Code Chapter 32 incorporates International Fire Code Section 1010 governing means-of-egress door hardware: panic bars in assembly and high-occupancy uses, single-action unlatching, and limits on deadbolts, chains, and electromagnetic locks.
Cook County Code Chapter 102 zoning limits floor area, lot coverage, and setbacks in unincorporated residential districts, while many suburban Cook municipalities have adopted mansionization rules capping FAR and bulk for teardowns in established neighborhoods.
Cook County adopts the Illinois Energy Conservation Code statewide minimum and supplements it with the Cook County Sustainable Building Ordinance for county-owned projects, while many suburbs require LEED, Energy Star, or stretch energy code compliance for private development.
4 cities in Cook County have their own building safety rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Cook County — parking, noise, fences, fires, animals, pools, and more.
Cook County Ordinance Hub →