Oak Park, IL Landscaping Rules: Grass Height Limits (2026)

The Village of Oak Park requires residential property owners to maintain grass and vegetation at a height not exceeding 8 inches. This applies to all maintained lawn areas including front yards, side yards, rear yards, and parkway strips between the sidewalk and curb. The Village Code Enforcement division conducts regular inspections during the growing season (typically April through October) and responds to complaints year-round. When a violation is identified, the property owner receives written notice with a specified compliance period (typically 5 to 7 days) to mow the property. If the owner fails to comply within the notice period, the Village may hire a contractor to mow the property and assess the cost as a lien against the property. Naturalized or prairie-style landscaping is permitted as an alternative to traditional lawns but must be properly maintained, clearly intentional in design, and registered with the Village if applicable. Weeds, invasive species, and noxious plants are not considered acceptable naturalized landscaping. The Village encourages residents to maintain their properties proactively to avoid enforcement action.