Garage conversion rules in St. Augustine Beach, FL — 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 St. Johns County requires a building permit under the Florida Building Code. The new room must meet residential egress, light, ventilation, alarm, and wind-load standards, and required off-street parking must be preserved.
A garage conversion changes the occupancy of the space, so St. Johns County requires a building permit and plan review under the Florida Building Code. The converted room must meet residential standards for ceiling height, emergency egress, smoke and carbon-monoxide alarms, and insulation, and the exterior walls must carry the same hurricane wind loads as any habitable room. Adding a bathroom or kitchen brings plumbing and electrical permits. Zoning still requires the home to keep its minimum off-street parking, so the conversion cannot leave the property short of required spaces. If the conversion creates a separate rental unit, it is treated as an Accessory Family Unit.
An unpermitted garage conversion is a code violation that can force removal or after-the-fact permitting, and losing required parking or renting an unapproved unit adds zoning enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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