Environmental Rules in Highland Park, IL (2026)

1 verified environmental rules for Highland Park, Illinois, sourced directly from the municipal code and official government pages.

Verified from official government sources

Flood Zones

Highland Park has significant flood zones along both forks of the North Branch of the Chicago River. The city established its own floodplain with Base Flood Elevations often higher than FEMA's. Watershed Development Permits required for floodplain work.

Highland Park Flood Zone Regulations & Building Rules

Heavy Restrictions

Full ordinance details →Official source ↗

Looking for Lake County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Highland Park city rules.

Environmental Rules in Lake County →