Tiny Homes, Cabins, and Kit Homes in Central Florida: What’s Legal to Live In

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Tiny homes look like the simplest answer to Florida’s housing costs: buy a cheap lot, put a small house on it, and live with no mortgage. In practice, it’s one of the most misunderstood topics in Florida real estate. Whether you can legally live in a small home depends on what the state calls it, what the county’s zoning allows on that lot, and whether it can get water, sewer, and a certificate of occupancy. A cabin kit or a tiny house on a trailer can look exactly like a home and still be something you can’t legally live in year-round.

Short version: In Central Florida, a small home you can live in full time is generally one of three things: a site-built home permitted under the Florida Building Code, a factory-built modular home with a state insignia, or a HUD-code manufactured home set up by a licensed installer. Tiny houses on wheels and park model RVs are treated as trailers or recreational vehicles meant for temporary or seasonal living, not permanent homes. On top of that, county zoning sets minimum home sizes in many districts, and backyard tiny homes (ADUs) are up to each county, since Florida still has no statewide ADU law. Every home also needs approved sewage treatment before anyone can move in, so a composting toilet doesn’t replace septic. And small homes often pay the same impact fees as big ones, from about $9,800 in Brevard to $37,700 in Osceola.

First question: what will the law call it?

Florida doesn’t have a single “tiny home” category. Everything depends on how the home is built and certified.

A small site-built home. A house built on the lot under a building permit, to the Florida Building Code, is a house no matter how small. Florida’s residential code includes a tiny house appendix for homes of 400 square feet or less, not counting lofts, which the legislature’s staff described as setting tiny house standards statewide. A small site-built home gets a certificate of occupancy, is taxed like any other house, and can get the homestead exemption. It’s the most straightforward legal path, but it needs engineered plans, permits, and inspections like any home.

A modular home. A factory-built manufactured building, often called modular, is built to the Florida Building Code in a factory and carries a state insignia from the Department of Business and Professional Regulation. According to state guidance, local governments can’t treat modular homes differently from site-built homes, though they still control foundations, zoning, and utility hookups. Many small “cabin” and “ADU” products are sold as modular buildings; look for the state insignia, usually found inside the electrical panel cover.

A manufactured (mobile) home. Under F.S. 320.01, a mobile home built since June 15, 1976 to the federal HUD code is a “manufactured home,” with a HUD label on each section. In Florida:

Zoning decides where manufactured homes are allowed, and many districts don’t allow them.

A park model RV. Park trailers, often sold as “park model tiny homes,” are defined in state law as designed for “seasonal or temporary living quarters.” They’re limited to 400 square feet if built to the RV park-model standard, or 500 if built to HUD standards. They’re registered as vehicles, not houses. When lawmakers considered a 2024 bill to change that, the bill analysis noted that people living in them year-round “must periodically leave RV and mobile home parks.” The bill died.

A tiny house on wheels. According to FLHSMV’s procedures, owner-built tiny houses on trailers that aren’t built to the RV (ANSI) or HUD standards aren’t RVs or mobile homes at all, and those weighing 2,000 pounds or more are titled as plain trailers. A trailer isn’t a dwelling under zoning or the building code, so living in one full time on your own lot generally isn’t allowed in Central Florida, outside narrow exceptions like temporary living during construction, covered below.

Kit cabins and shipping containers. A kit cabin or a container home has to end up as one of the categories above, usually a site-built home with engineered plans that meet Florida’s wind and building codes. Windows, doors, and other components also need Florida product approval. Many kits sold online aren’t designed for Florida’s wind loads, which can mean paying an engineer to redesign them or finding out they can’t be permitted as a home at all. Before buying a kit, ask whether the seller has Florida-sealed engineering drawings.

Zoning: where small homes are allowed

Even a fully legal small home has to fit the zoning on the lot. Three rules trip people up.

Minimum home sizes. Many zoning districts set a minimum living area. In unincorporated Volusia County, for example, the zoning summary sets minimums by district:

  • R-1 single-family: 1,500 square feet
  • Agricultural districts: 750 to 1,000 square feet
  • Mobile home districts: 480 to 720 square feet

A 400-square-foot tiny house can be perfectly legal under the building code and still be too small for the zoning on a particular lot. Check the district’s minimum before you buy land. The zoning guide explains how to look it up.

Where manufactured homes can go. Most counties allow manufactured homes only in certain districts, often agricultural, rural, or mobile home zones:

  • Osceola: the AC agricultural zone allows manufactured homes on lots of at least 2 to 5 acres.
  • Polk: Polk’s land development code allows individual mobile homes as a conditional use in many districts.
  • Deed restrictions and HOAs often ban manufactured homes even where zoning allows them, so check those too. The HOA rules guide covers that.

Backyard tiny homes (ADUs). An accessory dwelling unit is a second, smaller home on a lot that already has a house. Florida law lets counties allow ADUs but doesn’t require it, and bills to require it failed in both 2025 and 2026. The 2026 housing law that did pass instead ordered a state study of the potential of tiny homes, due by the end of 2027. For now, county rules decide:

  • Orange County allows ADUs only on homestead property, with the owner living on site. The county even offers pre-designed ADU plans of about 530 to 710 square feet, for long-term rentals only.
  • Volusia County allows ADUs of 240 to 1,200 square feet, no more than half the main home’s living area, with the main home owner-occupied. A mobile home can’t be an ADU unless the zoning allows mobile homes and the main home is one.
  • Polk County allows one accessory apartment or guest house per single-family lot, but mobile homes can’t be guest houses.
  • Lake County has proposed ADU rules that would allow units up to 1,200 square feet, including modular or mobile homes with wheels removed. Check the county’s current code for the adopted version.

Living in an RV while you build. Some counties allow it for a limited time. Lake County allows an RV or mobile home during construction with a one-year agreement and a $5,000 bond. Approved sanitary facilities must be in place first, and the unit has to go within 30 days of final inspection. Polk allows a temporary mobile home for medical hardship, and an RV or mobile home as emergency shelter for up to 90 days, extendable to nine months. Orange County’s RV permit is for storage, not living in it. Check before you plan to live on the land.

Water, sewer, and the off-grid question

A home can’t be occupied until the state approves its sewage system. Under F.S. 381.0065, no building may be occupied until the septic system’s final installation is approved, and if public sewer is available, the home has to connect.

Composting toilets don’t replace septic. Florida’s septic rules allow approved waterless, incinerating, or composting toilets, but only if graywater from sinks, showers, and laundry is still collected and treated. A composting toilet can shrink the required drainfield by 25%, but it doesn’t eliminate the septic system. In springs areas like the Wekiva basin, small lots without sewer need nitrogen-reducing systems that can cost $10,000 or more.

Water. A home needs a safe water supply, either a utility connection or a permitted well. The well and water line permits guide and septic and sewer guide cover both.

Solar and power. Nothing in Florida law stops you from powering a home with solar, and grid-tied systems can sell power back to the utility. The solar guide and electric providers guide cover the options. “Off-grid” in Florida realistically means solar plus a well and a permitted septic system, not skipping the sewage system.

What small homes pay in impact fees

New homes pay county impact fees, and smaller homes don’t always pay less. For the smallest size tier each county uses, in unincorporated areas:

  • Osceola: $37,718 for any single-family home, or $32,920 for a mobile home. No size tiers.
  • Orange: about $21,500 for a home of 1,200 square feet or less in the suburban district.
  • Polk: $18,027 for any single-family home in Zone A. No size tiers.
  • Volusia: $13,273 for a home of 1,200 square feet or less.
  • Seminole: about $12,000 for a home under 1,500 square feet in the suburban district.
  • Brevard: $9,838 for any single-family home. No size tiers.
  • Lake: has a size tier for homes of 800 square feet or less. Check the county schedule.

Two exceptions in Florida’s Impact Fee Act matter for small-home builders:

  • Replacing an existing home. Local governments can’t charge impact fees for replacing a structure that already existed, as long as it’s the same use and doesn’t add impact. A lot with an old mobile home or a teardown on it can save the whole fee.
  • Affordable housing. Counties may waive fees for affordable housing that meets state income and price limits.

The impact fees by county guide and cost to build guide have the full numbers.

Taxes on a manufactured home

How a manufactured home is taxed depends on the land under it. Under F.S. 320.015 and F.S. 193.075:

  • Owned land: if you own the land and the home is permanently affixed (tied down and connected to utilities), it’s taxed as real property, like a house. It gets an “RP” sticker instead of a license plate, and as real property it can qualify for the homestead exemption. Confirm with your county property appraiser.
  • Rented lot: a home on a rented lot in a mobile home park pays an annual license tax instead.

The homestead exemption guide covers how to apply.

Financing a small home

Small homes are harder to finance than standard houses:

  • FHA Title I loans finance manufactured homes that are the borrower’s main residence. HUD’s current limits are about $105,500 for a single-section home or $148,900 for a single-section home plus lot, for up to 20 years.
  • A traditional FHA mortgage can be used on a manufactured home of at least 400 square feet, built after June 15, 1976, on a permanent foundation and classified as real estate, according to HUD’s guidance.
  • Site-built and modular homes can use regular mortgages, though some lenders hesitate on very small homes.
  • Tiny houses on wheels and park models generally don’t qualify for home mortgages, since they’re not real property.

The mortgage and financing basics guide covers loan types.

RV parks and tiny home communities

Many people living in tiny houses on wheels or park models use RV parks or mobile home parks. Florida regulates about 5,400 of them through the Department of Health. Under F.S. 513.01, RV parks are built around transient guests staying six months or less. Some parks and planned “tiny home communities” allow longer stays, but check the park’s rules, the zoning, and the type of lease before you commit. Disputes over lot rentals in mobile home parks fall under Chapter 723 of state law.

Hurricanes: small homes and mobile homes

The Florida Division of Emergency Management is blunt: “It is never safe to remain in a mobile home during a high wind event such as a tropical storm, hurricane, thunderstorm, or tornado.” State guidance tells people in mobile homes to follow every evacuation order, whatever their evacuation zone. The same caution applies to RVs, park models, and tiny houses on wheels. A site-built or modular small home built to the current Florida Building Code is built to the same wind standards as any new house. The hurricane code and wind zones guide and hurricane evacuation guide cover the details, and insurance for small and manufactured homes is covered in the homeowners insurance guide.

Before you buy land or a tiny home: a checklist

  1. Decide what the home will legally be: site-built, modular with a state insignia, or HUD-code manufactured. Avoid buying a trailer-based tiny house if you plan to live in it full time on your own land.
  2. Check the zoning on the exact lot: whether that home type is allowed, the minimum living area, setbacks, and any deed restrictions or HOA rules. The county’s planning department can confirm in writing.
  3. Confirm sewage and water: sewer availability, or whether the lot can pass a septic site evaluation, and whether it’s in a springs protection area that requires a nitrogen-reducing system.
  4. Price the impact fees, and check whether an existing structure on the lot would qualify for the replacement exemption.
  5. Line up financing before you buy, since many lenders won’t finance very small homes or homes that aren’t real property.
  6. Plan for hurricanes: a wind-rated home, proper tie-downs, and an evacuation plan.

The buildable lot checklist and buying vacant land guide walk through the land side. The county guides for Orange, Seminole, Osceola, Lake, Polk, Volusia, and Brevard cover each county’s rules.

Frequently Asked Questions

Yes, if they’re built as a permitted site-built home, a state-approved modular home, or a HUD-code manufactured home, and the zoning on the lot allows that type and size. Tiny houses on wheels and park model RVs are treated as trailers or RVs for temporary or seasonal living, not permanent homes.

Generally not full time. Florida titles owner-built tiny houses on trailers as trailers, and they aren’t dwellings under zoning or the building code. Some counties allow an RV or mobile home temporarily while you build a permitted home; Lake County, for example, allows one year with a $5,000 bond.

Not statewide, but many county zoning districts set one. In unincorporated Volusia County, for example, minimums range from 480 square feet in some mobile home districts to 1,500 square feet in the R-1 single-family district. Check the zoning on the exact lot.

It’s up to each county or city. Florida law lets local governments allow ADUs but doesn’t require it, and bills to require them failed in 2025 and 2026. Orange and Volusia counties allow them with limits, including that the owner live on the property.

Not entirely. Florida allows approved composting toilets, but graywater from sinks, showers, and laundry still has to go to a permitted treatment system. A composting toilet can reduce the required drainfield by 25%, and a home can’t be occupied until its sewage system is approved.

Yes, and often as much as larger homes. Osceola, Polk, and Brevard charge a flat fee per single-family home regardless of size, about $37,700, $18,000, and $9,800. Replacing a home that already existed on the lot generally doesn’t trigger new impact fees.

No. Florida requires a licensed mobile home installer, a county set-up permit, and a foundation and tie-downs that meet state standards. Homes in all seven Central Florida counties must be rated for at least HUD Wind Zone II.

No. The Florida Division of Emergency Management says it is never safe to stay in a mobile home during a tropical storm, hurricane, or tornado, and that people in mobile homes should follow all evacuation orders whatever their zone. The same applies to RVs and tiny houses on wheels.

Sources

This article is for general informational purposes only and isn’t financial, legal, insurance, or tax advice – for guidance specific to your situation, talk to a licensed professional.

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