Accessory Structures in Port St. Lucie, FL (2026)
4 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 defines an accessory dwelling unit but does not list one among the accessory uses allowed in single-family districts, and Sec. 158.217(C)(2) prohibits every accessory use it does not list. Guest houses are treated separately.
Port St. Lucie ADU and Guest House Rules
Some RestrictionsPort St. Lucie Code of Ordinances Sec. 158.217(A) and (C)(2); Sec. 158.042; Sec. 158.071(C)(1); Ch. 153 definitions of ACCESSORY DWELLING UNIT and GUEST HOUSE
(2) 'Accessory dwelling unit' means an ancillary or secondary living unit, that has a separate kitchen, bathroom, and sleeping area, existing either within the same structure, or on the same lot, as the primary dwelling unit. (3) A local government may adopt an ordinance to allow accessory dwelling units in any area zoned for single-family residential use. The ordinance must provide that any ac...
Shed & Carport Rules
Section 158.217(C)(2)p caps a carport at 200 square feet on lots under 18,500 square feet and 400 square feet of total carport area on larger lots, with height limited to the principal building roof line or 22 feet.
Carport Size and Height Limits in Port St. Lucie
Some RestrictionsPort St. Lucie Code of Ordinances § 158.217(C)(1) and (C)(2)p; permit § 150.001 (FBC 105.1); penalty §§ 158.999, 10.99
Carports - Maximum size = 200 square feet and limited in height so that it is not higher than the principal building's roof line or 22 feet in height, whichever is more restrictive for lots less than 18,500 square feet. Lots 18,500 square feet or greater shall be allowed a maximum of 400 square feet of total carport area and limited in height so that it is not higher than the principal building...
Garage Conversions
Port St. Lucie requires every single-family home to have a garage or carport of at least 200 square feet at certificate of occupancy, so converting one to living space runs against Section 158.206.
Garage Conversion Rules in Port St. Lucie
Some RestrictionsPort St. Lucie Code §§ 158.206, 158.221(A)(5), 158.221(C)(8)a, 150.001, 158.999(A)
(1)(a) As provided in this subsection, it shall be unlawful for any person, firm, corporation, or governmental entity to construct, erect, alter, modify, repair, or demolish any building within this state without first obtaining a permit therefor from the appropriate enforcing agency or from such persons as may, by appropriate resolution or regulation of the authorized state or local enforcing ...
Tiny Homes
Port St. Lucie sets a minimum house size in every residential district, so a very small dwelling will not qualify as a stand-alone home, and the code separately bans living in a recreational vehicle.
Tiny Home Rules in Port St. Lucie
Heavy RestrictionsPort St. Lucie Code Secs. 158.073(G), 158.042, 158.999; Secs. 73.01, 73.03, 73.99
(1)(a) As provided in this subsection, it shall be unlawful for any person, firm, corporation, or governmental entity to construct, erect, alter, modify, repair, or demolish any building within this state without first obtaining a permit therefor from the appropriate enforcing agency or from such persons as may, by appropriate resolution or regulation of the authorized state or local enforcing ...
Looking for St. Lucie County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Port St. Lucie city rules.
Accessory Structures in St. Lucie County →