Tiny Homes and Container Homes in Palm Beach County: What Zoning Actually Allows

Tiny homes Florida zoning rules decide where a small house can legally sit, and in Palm Beach County the answer depends on what kind of tiny home you mean. A small house built on a foundation counts like any other home. A tiny house on wheels usually counts as a recreational vehicle. Shipping container homes fall somewhere in between until an engineer and the building department sign off. This guide explains how each type fits under county and city rules, what the wind code means for small structures, and how buyers usually pay for them.

Key takeaways

• Florida law defines an RV as temporary living quarters. A park trailer counts as an RV if it stays under 400 square feet (ANSI standard) or 500 square feet (HUD standard).
• In unincorporated Palm Beach County, one Accessory Quarters unit is allowed by right next to a single-family home. It can be up to 800 square feet on a lot under one acre, or 1,000 square feet on one acre or more.
• Accessory Quarters must share utility meters with the main house and stay under the same ownership. You cannot split them off and sell them.
• Modular homes built to the Florida Building Code carry a state insignia from the DBPR program. With that insignia, the local building department does not need to repeat the plan review.
• Each city in the county writes its own zoning code. So always check with the city as well as the county.

What counts as a tiny home under Florida zoning?

Zoning codes do not use the phrase "tiny home" much. Instead, they sort small dwellings by how they are built and how they are moved. That label drives everything else, from where the unit can sit to how it is taxed and insured.

In practice, most small homes in South Florida fall into one of four groups:

• A site-built house on a permanent foundation, built under a normal building permit.
• A modular home built in a factory to the Florida Building Code and set on a foundation.
• Then there is the manufactured home, built to the federal HUD code on a steel chassis.
• A tiny house on wheels, which state law usually treats as an RV or park trailer.

Container homes can land in the first or second group. It depends on whether a licensed engineer designs the conversion on site or a factory builds it under the state modular program. The HUD code is federal, while modular homes follow the state building code, and that difference affects zoning, financing and insurance.

Tiny homes on wheels and Florida zoning for RVs

Many people picture a tiny home as a cute cabin on a trailer. Under Florida Statutes section 320.01, that kind of unit usually counts as a recreational vehicle. The statute describes RVs as built for temporary living quarters for camping, travel or recreation.

The same law sets size limits. For example, a travel trailer can be no more than 8.5 feet wide and 40 feet long. A park trailer can have up to 400 square feet under the ANSI standard, or 500 square feet under the HUD standard. So a tiny house on wheels gets a title and registration like a vehicle instead of a deed.

That status matters for zoning. Because an RV is temporary housing, most residential districts do not let you live in one full time on a lot. Palm Beach County's code, for instance, treats a campground as temporary camping, "not as permanent living quarters." It also limits stays at RV sites to 180 days per calendar year.

Where an RV-style tiny home can go

Generally, your realistic options are a licensed RV park or campground, storage on your own lot where the code allows it, or a farm or rural property with special approval. Even then, read the deed restrictions and HOA rules. Many Palm Beach County subdivisions limit RV parking in driveways, so check the documents before you buy a lot for one.

Accessory dwellings: the main Florida zoning path for a tiny home

For most owners, the most practical way to add a tiny home is as a second unit next to an existing house. Florida law lets cities and counties do this. Under Florida Statutes section 163.31771, a local government "may adopt an ordinance" allowing accessory dwelling units in single-family zones. Units approved under that law also count toward the local affordable housing plan.

The state law also sets an affordability rule for some permits. When a unit is permitted under one of these ordinances, the applicant signs an affidavit that it will be rented at an affordable rate to a qualifying household. However, the details vary by local ordinance, so ask the permit office which version applies.

Palm Beach County Accessory Quarters rules

In unincorporated Palm Beach County, the Unified Land Development Code, Article 4 calls this use "Accessory Quarters." The county updated these rules in 2023. Here is how they work:

• One unit is allowed by right next to a single-family home, townhouse or zero lot line home.
• The unit must have its own kitchen, bathroom and sleeping space, on the same lot as an owner-occupied main home.
• Living area is capped at 800 square feet on lots under one acre and 1,000 square feet on one acre or more.
• Porches, patios, carports or garages under a solid roof can add up to 500 more square feet.
• The unit must match the main house in style and materials.
• There can be no separate utility meters.
• It stays under the same ownership as the main home and cannot be split off or sold as a condo.

The county also allows a Guest Cottage with the same size caps. However, a Guest Cottage cannot have a kitchen, and it is only for non-paying guests.

How tiny homes fit Florida zoning in cities

Palm Beach County has dozens of cities and towns, and each one writes its own code. As a result, the county rules above apply only outside city limits. Inside Boca Raton, Jupiter or Wellington, for example, you need that city's own accessory unit rules. Some cities allow second units in more districts than others, and some set minimum floor areas for a primary home.

Port St. Lucie, in St. Lucie County, has its own zoning code as well. So before you buy a lot there for a small home, call the city's planning and zoning department. Our Port St. Lucie area page covers the local market if you are comparing it with Palm Beach County.

Tiny homes, Florida zoning and rural land

Larger rural lots give you more room, but not unlimited room. In The Acreage and the Loxahatchee area, many lots are an acre or more. Under the county code, that means an Accessory Quarters unit can reach 1,000 square feet. Loxahatchee Groves, however, is a separate town with its own rules, so the same address label can mean two different codes.

Some buyers hope to put a tiny home on vacant land as the only dwelling. That can work if the small home meets the building code and any minimum size rule for the district. Even so, septic, well and flood elevation rules still apply. The Loxahatchee area page shows what is listed now.

Mobile homes on residential lots

Manufactured and mobile homes face tighter limits in the county. The county code treats a Mobile Home Dwelling as a principal use only in the Mobile Home Planned Development district or an existing approved mobile home park. Outside those areas, a mobile home may be allowed only in narrow cases, such as on a working farm with a removal agreement.

Container and tiny homes under Florida zoning and building codes

A shipping container is a steel box, not a house. To live in one, it has to meet the same building code as any home. That means engineered foundations and tie-downs, window and door openings rated for wind, insulation, fire safety and flood elevation.

There are two common routes. First, an engineer can design the conversion and a contractor can build it on site under a local permit. Second, a factory can build the home as a modular unit under the state program. In both cases, the zoning rules still apply. So a container home still has to meet setbacks, height limits and design standards for its lot.

Modular approval through the state

The Florida Department of Business and Professional Regulation runs the Manufactured (Modular) Buildings Program. Modular buildings must meet the Florida Building Code and carry the state insignia plus a data plate. Once they do, the local building department does not have to review the plans again. However, the foundation, utility hookups and site work still need local permits.

Wind codes, flood rules and insurance

Palm Beach County sits in a high wind zone, so every permanent home must be built to the wind loads in the Florida Building Code. Small homes are no exception. In fact, light structures need careful anchoring, because they have less weight to resist uplift. Windows and doors also need approved impact protection.

Flood zones matter too. If a lot sits in a FEMA special flood hazard area, the lowest floor must meet the local base flood elevation. You can look up any address on the FEMA Flood Map Service Center.

Insurance follows the label. A tiny house on wheels is usually covered by an RV policy, while a foundation-built small home gets a homeowners policy. Some carriers are cautious with container or self-built homes, so get quotes before you commit.

How buyers pay for a tiny home

Financing also depends on the type. A site-built or modular home on its own lot can often qualify for a standard mortgage, as long as it appraises and meets lender rules. However, appraisers need comparable sales, and very small homes have few local comps. That can make the appraisal harder.

By contrast, a tiny house on wheels is usually paid for with cash, an RV loan or a personal loan. Rates and terms are often less favorable than a mortgage. If you plan to add an Accessory Quarters unit to a home you already own, some owners use home equity instead. Talk with a lender early, before you sign with a builder.

Frequently asked questions

Can I live full time in a tiny house on wheels in Palm Beach County?

Usually not on a regular residential lot. Florida law treats most tiny houses on wheels as RVs, which are temporary quarters. Licensed RV parks are the most common legal option, and the county caps RV site stays at 180 days a year.

How big can a backyard tiny home be in unincorporated Palm Beach County?

As Accessory Quarters, it can have up to 800 square feet of living area on a lot under one acre. On one acre or more, the cap is 1,000 square feet. Covered porches, carports or garages can add up to 500 square feet.

Can I sell a backyard unit separately from the main house?

No. Under the county code, accessory units stay under the same ownership as the main home and cannot be subdivided or sold as a condo.

Does Florida zoning allow container or tiny homes in Palm Beach County?

They can be, if they meet the Florida Building Code and the zoning rules for the lot. That usually means an engineered design or a state-approved modular unit, plus local permits for the foundation and site work.

Do city rules differ from county rules?

Yes. County rules cover only unincorporated areas. Each city sets its own zoning, so check with the city where the lot sits.

Sources

• Florida Statutes, s. 320.01 definitions (recreational vehicles)
• Florida Statutes, s. 163.31771 accessory dwelling units
• Palm Beach County ULDC, Article 4 use regulations
• Florida DBPR, Building Codes and Standards FAQs
• FEMA Flood Map Service Center

Own a home with room for a second unit? Find out what your property is worth today with a free home value report from Pure Equity. If you are shopping for land or a small home instead, schedule a buyer strategy call and we will help you check the zoning before you make an offer. Talk with our team.