Before You Build in Oak Park, IL: Permit & Rule Checklist (2026)

Oak Park limits fence heights to 4 feet in front yards and 6 feet in side and rear yards. Corner lots have additional visibility triangle requirements. The Village's historic character means fence regulations are closely enforced, especially in historic districts.

Oak Park follows Illinois law on boundary fences. The finished side of a fence should face the neighbor. Property owners are encouraged to agree on shared boundary fences, though Illinois does not require cost-sharing. Disputes over fence placement can be mediated through the Village.

Oak Park requires building permits for retaining walls over 4 feet in height. Engineered drawings may be required for taller walls. Retaining walls must be designed to handle drainage and not direct water onto neighboring properties.

Oak Park requires a building permit for all fence installations and replacements. Permit applications must include a site plan showing the fence location, height, and materials. Properties in historic districts may also require review by the Historic Preservation Commission.

Oak Park requires a minimum 48-inch barrier around all residential swimming pools per the Illinois Swimming Pool and Bathing Beach Act and Village building code. Gates must be self-closing and self-latching with latches placed at least 54 inches above grade.

Oak Park requires a building permit for the installation of in-ground and above-ground swimming pools. Permits are issued by the Building Division and require compliance with setback requirements, barrier/fencing standards, electrical codes, and drainage provisions. Inspections are required at multiple stages of construction.

Oak Park enforces residential pool safety rules consistent with the International Swimming Pool and Spa Code and Illinois state law. Requirements include anti-entrapment drain covers, proper chemical storage, electrical safety standards, and barrier maintenance. Pool owners are responsible for maintaining safe conditions at all times.

Above-ground pools in Oak Park require a building permit and must comply with barrier requirements. Pools with walls at least 48 inches tall may use the pool structure as the barrier, but access points must be secured. Setbacks from property lines apply, and drainage must not affect neighboring properties.

Hot tubs and spas in Oak Park require electrical permits and must meet safety standards including GFCI protection, lockable covers, and proper drainage. Setback requirements apply for placement relative to property lines. A building permit may be required depending on the installation method and structural support needs.

Oak Park requires a safety barrier around all residential swimming pools in compliance with the International Swimming Pool and Spa Code and Illinois state law. Barriers must be at least 48 inches tall with self-closing and self-latching gates. The barrier must completely enclose the pool area and prevent unsupervised access by children.

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, 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 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.

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.

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 allows recreational fires in portable fire pits under strict conditions. Fire pits must be at least 15 feet from any structure, fence, or combustible material. Only clean, dry wood or manufactured fire logs may be burned. Fires must be attended at all times and fully extinguished before being left unattended. Permanent built-in fire pits may require a building permit.

Oak Park prohibits open burning of yard waste, leaves, trash, and construction debris. The only permitted outdoor fires are recreational fires in approved fire pits and barbecue grills used for cooking. Illinois EPA regulations and Cook County Health Department rules reinforce the prohibition on open burning. Yard waste must be collected through the Village's curbside program.

Oak Park relies on Lake Michigan water and generally does not impose permanent watering restrictions. However, odd/even watering schedules or temporary bans may be enacted during drought conditions or water supply emergencies. The Village encourages water conservation practices.

Oak Park requires permits for removing private trees over a certain diameter. The Village has strong tree preservation policies, and parkway trees cannot be removed without Village authorization. Replacement trees may be required when removal is approved.

Oak Park requires property owners to maintain trees so branches do not obstruct sidewalks, streets, or traffic signs. Minimum clearance is 8 feet over sidewalks and 14 feet over streets. The Village Forestry Division manages parkway (public) trees.