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St. Lucie County, FL Accessory Structures: Tiny Homes (2026)

Some Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

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.

Key Facts

County tiny-home rule: None specific
On foundation: Dwelling under Florida Building Code
On wheels: Treated as recreational equipment/RV
Living in RV: Prohibited (LDC 8.00.03(F))
Movable-home route: RMH-5 or licensed park

Summary

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.

City-specific rules exist: Port St. Lucie has its own tiny homes rules that differ from St. Lucie County's county-level regulations. If you live in Port St. Lucie, check the city-specific page instead.

Recreational equipment shall not be used for living, sleeping or housekeeping purposes.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 32 | Land Development Code: Supplement 36).

Full Breakdown

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.

Violations & Fines

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.

Frequently Asked Questions

Can I live in a tiny house on wheels in St. Lucie County?

Not on a residential lot. LDC 8.00.03(F) treats it as recreational equipment that may not be used for living or sleeping. Licensed mobile-home or RV parks are the exception. Confirm with county Planning.

Are foundation-built tiny homes allowed?

Potentially, if the zoning district permits a single-family dwelling and the home meets Florida Building Code and minimum-size and setback rules. St. Lucie County has no separate tiny-home category, so it is judged as a standard dwelling.

Sources & Official References

[1]St. Lucie County LDC 8.00.00 Accessory Uses and Structures

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All St. Lucie County rules

Florida rules heatmap·Compare St. Lucie County to another location·View the Florida accessory structures overview

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Tiny Homes in Cities Across St. Lucie County

Port St. Lucie, FL