Bowling Green, KY Accessory Structures: Garage Conversions (2026)

A garage conversion is a structural alteration and a change of occupancy under the Kentucky Residential Code (815 KAR 7:125), so the Bowling Green Building Division requires a building permit; the city's Info-for-Homeowners page expressly requires permits for 'covering egress points, new window openings, wall removal, and new wall construction.' An electrical permit is also required if any wiring is added or modified (the city lists 'additions of electricity to structures, storage units or garage' as a triggering activity). The converted space must meet code minimums for ceiling height, light and ventilation, egress windows from sleeping rooms, smoke and CO alarms, and energy code insulation. If the conversion includes cooking facilities and a separate entrance, it becomes an Accessory Apartment subject to Joint Zoning Ord. § 4.4.5.E(5): only allowed in RR, R-E, and RS-1 zones; capped at 50 percent of the principal dwelling's floor area; max 2 bedrooms; owner must occupy the main house; occupancy limited to family members or one live-in caretaker; one additional off-street parking space required. A garage converted to non-dwelling habitable space (home office, family room, hobby room) still needs a building permit but is not subject to the Accessory Apartment rules. If the conversion eliminates required off-street parking for the principal dwelling, replacement parking must be provided on-site.