Land Use
In Practice
A converted garage may become a living space addition to the primary house, a detached accessory dwelling unit, or a junior ADU depending on how the space is configured and permitted. Key questions to resolve before beginning any conversion are whether the city requires replacement parking to offset the loss of the garage space, and whether the existing garage's ceiling height and structural condition meet the building code minimums for habitable space. A building permit is required in all major US jurisdictions.
Source: Can I Convert My Garage Into a Living Space? Rules by City · Verified April 5, 2026