Accessory Structures in Port St. Lucie, FL (2026)
5 verified accessory structures rules for Port St. Lucie, Florida, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Port St. Lucie permits accessory dwelling units in select zoning districts subject to owner occupancy, size limits typically capped at 50% of the primary dwelling, and Florida Building Code hurricane construction. No statewide ADU mandate exists.
Accessory Structures: Adu Rules
Some RestrictionsShed Rules
Sheds in Port St. Lucie under 120 sq ft are exempt from building permits but must meet zoning setbacks. Larger sheds require permits and must comply with Florida Building Code 150 mph wind-load standards.
Accessory Structures: Shed Rules
Some RestrictionsGarage Conversions
Port St. Lucie allows garage conversions to habitable space with a building permit but requires the conversion to preserve required off-street parking and meet Florida Building Code habitable-space standards.
Accessory Structures: Garage Conversions
Some RestrictionsCarport Rules
Port St. Lucie regulates carports as accessory structures under Section 158.217 of the Zoning Code. On lots smaller than 18,500 square feet the maximum carport area is 200 square feet; lots 18,500 square feet or larger may have up to 400 square feet of total carport area. Carports cannot exceed the principal building's roofline or 22 feet, whichever is more restrictive. Accessory structures must be at least 10 feet from the rear property line, with side setbacks matching the underlying zoning district.
Carport Rules in Port St. Lucie
Some RestrictionsTiny Homes
Port St. Lucie does not have a tiny-home-specific ordinance, and the city's minimum-dwelling-size requirements effectively prohibit traditional tiny homes (typically 100-400 sq ft) on standard residential lots. Section 158.076 (RS-3) and the corresponding RS-2 standards in Section 158.073 require a minimum 1,200 square feet of living area and 1,400 square feet of ground area for a one-story single-family dwelling. Florida Statute 163.31771 enables municipalities to permit accessory dwelling units in single-family zones, but Port St. Lucie's ADU framework remains under city review.