Accessory Structures in Oak Park, IL (2026)
5 verified accessory structures rules for Oak Park, Illinois, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Oak Park, IL allows accessory dwelling units (including the traditional 'coach house' built above a detached garage) under the Village of Oak Park Zoning Ordinance, originally adopted September 18, 2017 and amended through July 2, 2025. ADUs are capped at 1,000 sq ft, only one ADU is allowed per single-family lot, and no parking is required beyond the two spaces required for the primary single-family home.
Oak Park ADU Permit Requirements
Some RestrictionsShed Rules
Oak Park requires permits for storage sheds depending on their size. Small sheds under a certain square footage threshold may be exempt from building permits but must still comply with zoning setback and lot coverage requirements. Larger sheds require a building permit and must meet the village's accessory structure standards.
Oak Park Shed Permit Requirements
Some RestrictionsGarage Conversions
Oak Park allows conversion of a detached garage into a coach house — an ADU located on the upper floor of a detached garage — under the Village of Oak Park Zoning Ordinance. Ground-floor parking is preserved, and no additional off-street parking is required beyond the two spaces for the single-family home.
Oak Park Garage Conversion to Coach House Rules
Some RestrictionsCarport Rules
Carports in Oak Park are regulated as accessory structures and require a building permit. They must comply with zoning setback requirements, lot coverage maximums, and building code standards. Carports are generally permitted in rear and side yards but may face restrictions in front yards.
Oak Park Carport Regulations
Some RestrictionsTiny Homes
Tiny homes face significant zoning barriers in Oak Park. The village's zoning ordinance establishes minimum dwelling unit sizes, and tiny homes on wheels are generally classified as recreational vehicles rather than dwellings. Tiny homes on permanent foundations may be possible as ADUs if they meet minimum size and building code requirements.
Oak Park Tiny Home Regulations
Heavy RestrictionsLooking for Cook County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Oak Park city rules.
Accessory Structures in Cook County →