Schaumburg, IL Accessory Structures: Garage Conversions (2026)

Schaumburg's zoning ordinance establishes minimum off-street parking requirements for single-family residences, typically two enclosed parking spaces. Converting a garage to living space eliminates these required spaces and creates a zoning non-conformity. The Village generally does not approve garage conversions that reduce parking below the minimum requirement unless the property can demonstrate alternative compliant parking such as a new detached garage or expanded driveway meeting minimum dimensions. If conversion is approved, the space must meet all building code requirements for habitable space including minimum ceiling height (typically 7 feet), natural light and ventilation (windows), adequate heating and cooling, egress windows in bedrooms, smoke and carbon monoxide detectors, and insulated walls and flooring. Electrical, plumbing, and HVAC permits are required for the respective systems. The garage door opening must be closed with a permanent wall matching the home's exterior. Converting a garage into a separate dwelling unit with its own kitchen triggers ADU restrictions and is generally not permitted by right. Foundation and structural adequacy must be verified since garage slabs may not meet habitable space standards for moisture protection and insulation.