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's single-family zoning code (Ch. 158) does not list accessory dwelling units among the accessory uses permitted in RE and RS-1 through RS-3 districts, so a separate second living unit is not allowed by right; Florida only authorizes (it does not require) cities to permit ADUs under Florida Statute 163.31771.
Port St. Lucie ADU / Guest House Rules
Some RestrictionsFla. Stat. Section 163.31771(2)-(3) (2024)
(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 Rules
Port St. Lucie limits unattached storage buildings to 500 square feet cumulative and requires them to be set back at least 10 feet from the rear property line; a city building permit is required before erecting a shed, consistent with Florida Statute 553.79.
Port St. Lucie Shed / Storage Building Rules
Some RestrictionsFla. Stat. Section 553.79(1)(a) (2024)
(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 ...
Garage Conversions
Converting a garage to living space in Port St. Lucie requires a building permit under Florida Statute 553.79 and must preserve the off-street parking required by Code Section 158.221, which counts a converted garage as 'no garage' and requires two exterior parking spaces.
Port St. Lucie Garage Conversion Rules
Some RestrictionsFla. Stat. Section 553.79(1)(a) (2024)
(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 ...
Carport Rules
Port St. Lucie Code Section 158.217(C)(2) caps a carport at 200 square feet on lots under 18,500 square feet (400 square feet on larger lots) and limits its height to the principal building's roof line or 22 feet, whichever is more restrictive.
Port St. Lucie Carport Rules
Some RestrictionsPSL Code of Ordinances Section 158.217(C)(2) (Carports)
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...
Tiny Homes
A tiny home used as a primary residence in Port St. Lucie must meet the single-family district's minimum living area - 1,200 square feet in RS-2 - which effectively bars a sub-400-square-foot tiny house as a stand-alone single-family dwelling, and any such home requires a building permit under Florida Statute 553.79.
Port St. Lucie Tiny Home Rules
Heavy RestrictionsFla. Stat. Section 553.79(1)(a) (2024)
(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 →