Garage conversion rules in Evanston, IL — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Evanston allows garage conversions to living space subject to building permits and zoning compliance. Converting a garage may require providing replacement off-street parking depending on the zoning district requirements.
Converting a garage to habitable living space in Evanston requires a building permit and must comply with residential building code standards for egress, ventilation, insulation, and ceiling height. The zoning ordinance specifies minimum off-street parking requirements for each residential district. If converting the garage eliminates required parking spaces, the owner must demonstrate that replacement parking can be provided on-site or obtain a zoning variation. Garage conversions must meet energy code requirements and may require upgrades to electrical, plumbing, and HVAC systems. The converted space must have proper egress windows and smoke detectors. Converting a garage to an ADU is subject to the separate ADU regulations. The property must maintain minimum lot coverage and setback compliance after conversion. Contact Community Development at (847) 448-4311.
Converting a garage without permits is a code violation subject to fines starting at $250 per day. Unpermitted conversions may need to be reversed or brought into compliance through retroactive permitting and inspections.
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Side-by-side rule comparisons with other cities in Cook County.
See how other cities in Cook County handle garage conversions.
See how Evanston's garage conversions rules stack up against other locations.
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