Port St. Lucie, FL Accessory Structures: Garage Conversions (2026)

Florida Statute 553.79(1) makes it unlawful to alter or modify a building without first obtaining a permit, so converting a garage into a bedroom, office, or other habitable room in Port St. Lucie requires a building permit and must meet Florida Building Code habitable-space standards (egress, ceiling height, light, ventilation, smoke alarms). The conversion must also satisfy off-street parking. Port St. Lucie Code of Ordinances Section 158.221 sets minimum residential parking by garage type: a dwelling with a one-car garage needs two exterior parking spaces, a dwelling with a two-car (or more) garage needs one exterior space, and a dwelling with no garage needs two spaces. Because a converted garage no longer functions as a garage, the home is treated as having 'no garage' and must provide two exterior parking spaces, which a standard driveway can typically supply. The converted area also remains subject to the lot's setback and the Section 158.217(A) limit that accessory uses not exceed 20% of the principal building. Permits and habitable-space inspections are handled by the city's Building Department.