Tiny home rules in St. Lucie County, FL — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
St. Lucie County has no tiny-home ordinance. A site-built tiny house on a foundation is a dwelling under the Florida Building Code and zoning; a tiny house on wheels is recreational equipment that LDC 8.00.03 says may not be used for living or sleeping.
There is no specific tiny-home rule in the St. Lucie County Land Development Code. A permanent tiny house on a foundation is regulated like any single-family dwelling: it must meet the Florida Building Code and the minimum size, setbacks, and use rules of its zoning district. A tiny house on wheels is generally classified as recreational equipment or an RV; LDC 8.00.03(F) restricts where such equipment may be parked and bars living in it. Long-term occupancy of an RV on a residential lot outside a licensed mobile-home or RV park is not permitted. The Residential Mobile Home (RMH-5) district and licensed parks are the usual routes for movable dwellings.
Living in a tiny house on wheels or RV on a residential lot violates LDC 8.00.03(F). St. Lucie County Code Compliance can order the occupancy to cease and impose Special Magistrate fines until the unit is removed or relocated.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how St. Lucie County's tiny homes rules stack up against other locations.
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