Lexington, KY Accessory Structures: Garage Conversions (2026)

Lexington permits garage conversions under the LFUCG Zoning Ordinance and the Kentucky Residential Code (KRC). Converting a garage to a habitable room such as a bedroom, office, or living area requires a building permit from the Division of Building Inspection. The converted space must meet KRC standards for habitable rooms including minimum ceiling height of seven feet, natural ventilation, egress windows in sleeping rooms, and electrical outlet requirements. If the conversion creates an accessory dwelling unit, it falls under Zoning Ordinance Section 3-12 and the ADU-specific rules apply: maximum 800 square feet, owner-occupancy in either the primary dwelling or the ADU, maximum two adult occupants, and a pre-application conference with the Division of Planning. When a garage is converted, the property must still meet minimum off-street parking requirements for the zoning district. In most residential zones, at least two off-street parking spaces are required per dwelling unit. If the garage provided required parking, the property owner must demonstrate that sufficient off-street parking remains after the conversion, such as through driveway spaces. Garage conversions in historic overlay (H-1) districts require Board of Architectural Review approval for exterior changes. Plumbing, electrical, and mechanical permits are required in addition to the building permit when adding kitchen or bathroom facilities.