Garage conversion rules in Madison, AL — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage into living space in Madison is a construction project that requires a building permit. If it creates a separate dwelling with a kitchen, it becomes an accessory dwelling unit and must meet the City's ADU zoning standards.
The City of Madison's building FAQ lists garage work among construction projects that require a permit, and any change that turns garage space into habitable living area alters occupancy and triggers building, electrical, and often mechanical permitting. If the converted space becomes an independent living unit with its own kitchen, it is regulated as an accessory dwelling unit under Zoning Ordinance Section 6-5-1.B: only one ADU per lot, one kitchen, no separate ownership, and one added paved parking space. Because Alabama is a Dillon-rule state, the City enforces its adopted building codes and zoning ordinance for these conversions. Call the Building Department at 256-772-5644 to confirm required permits.
Unpermitted living-space conversions can lead to stop-work orders, failed inspections, and orders to restore the space or bring it up to code.
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