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The Teton Range at sunrise reflected in a calm river below a pine forest in Wyoming

Tiny Homes in Wyoming: Laws, Rules and Communities

Updated November 4, 2026. Some laws may have changed since then. Confirm with your city or county before you buy land or a home.

The short answer

Yes, you can live in a tiny home full time in Wyoming, on a permanent foundation and where your city or county zoning allows a house. Wyoming has no statewide building code for houses, so which code applies depends on where you build, and Laramie and Teton counties both use the 2024 residential code with its tiny house appendix. On wheels, no Wyoming law we found defines a tiny home on wheels, and local zoning decides where you can live in one. Since July 1, 2026, a city or county that uses the residential code has had to approve or deny a complete permit application for a one or two unit home within 30 calendar days, not counting time the review is paused, or the application is deemed approved. Wyoming has the 23rd lowest cost of living of the 50 states, no state income tax, an effective property tax rate of 0.53 percent (11th lowest), and homeowners insurance averaging $1,805 a year.

On this page. Quick facts, the rules in plain words, where to start, living in Wyoming, communities and common questions.

In Wyoming, zoning is local, and so is building code review for houses. A tiny home on a permanent foundation, anchored to a base built into the ground, is a house. A tiny home on wheels, built on a trailer so it can be towed, has no category of its own in the Wyoming laws we read, so how one is treated once you live in it depends on your county.

This guide covers who sets the building code, the tiny house appendix, the 2026 permit deadline law, the state electrical rules, homes on wheels, manufactured and modular homes, ADUs, septic and wells, and what we found when we looked for communities.

Quick facts

  • On a foundation (anchored to a base in the ground): a house. Wyoming has no statewide building code for houses. Cities and counties adopt their own, and the state's own plan review covers public and government buildings, not private homes.
  • Tiny house appendix: adopted with the 2024 residential code in Laramie County and Teton County, for land outside city limits. Elsewhere, ask your building department.
  • Permit deadline: since July 1, 2026, a city or county that has adopted the residential code must approve or deny a complete application for a one or two unit home within 30 calendar days, not counting time the review is paused, or it is deemed approved.
  • Electrical: the National Electrical Code applies to buildings and mobile homes statewide, and new construction needs an electrical wiring permit, except on farms or ranches of 40 acres or more on deeded land and a few other exempt installations.
  • On wheels (built on a trailer): no Wyoming law we found defines a tiny home on wheels. Local zoning decides where you can live in one.
  • ADUs (a second, smaller home on the same lot as a house): no state ADU law that we found. Cities and counties decide.
  • Septic and wells: a septic system needs a permit before it is built, and a well needs a State Engineer permit before it is drilled.

Can you live in a tiny home full time in Wyoming?

Yes, on a permanent foundation where local zoning allows a house. On wheels, it depends on your city or county.

  • On a foundation, a tiny home is a house. It has to meet whatever building code your city or county enforces, the state electrical rules, and septic and well permit rules if there is no city sewer or water.
  • On wheels, we found no Wyoming law that allows or bans living full time in one. Counties set their own rules. Teton County, for example, does not allow living in a camping trailer or RV outside an authorized campground, except temporarily while an active building permit for a home is open.
  • The state sets no minimum house size that we found. Ask your city or county whether it does.

The rules in plain words

Building code

Wyoming has no single statewide building code for houses. The state fire marshal reviews plans, for fire and electrical safety, for state and local government buildings, public buildings over 5,000 square feet, multistory public buildings, child care centers for more than ten children, public assembly places and fuel dispensing facilities, under Wyoming Statute 35-9-108. Private one and two family homes are not on that list. Under W.S. 35-9-121, the state fire marshal hands enforcement of building, fire and electrical standards to cities and counties that apply for it and adopt standards at least as strict as the state's. The International Code Council describes Wyoming the same way, with codes adopted and enforced locally by cities and counties.

That leaves a question the statutes do not answer head on. Where a city or county has not adopted a building code, we found no state building code that reviews a private house, apart from the electrical rules below. Whether any other rule applies on a given piece of land is a county question. Ask the county planning office, in writing, whether a building code or permit applies before you build.

The tiny house appendix

The national residential code has an appendix with rules for tiny houses, often called Appendix Q. In the 2024 edition it is Appendix BB, Tiny Houses.

  • Laramie County adopted the 2024 International Residential Code, including Appendix BB, for unincorporated Laramie County, effective January 7, 2025.
  • Teton County adopted the 2024 International Residential Code, including Appendix BB Tiny Houses, for unincorporated Teton County, effective February 1, 2025.
  • Cities inside those counties set their own codes, and we have not checked other counties or cities. Ask your building department, in writing, whether it applies the tiny house appendix before you design or buy.

The 2026 permit deadline law

House Bill 2 of 2026, the Fast Track Permits Act (2026 session laws chapter 42), took effect July 1, 2026, as W.S. 16-13-101 and 16-13-102. It applies to counties that zone or have adopted a version of the International Residential Code, and to cities and towns that zone and have adopted a version of that code.

  • It covers permit applications filed on or after July 1, 2026 for a home with one or two units, no more than three stories, and no more than 3,000 square feet of finished floor area per unit, regulated under the local residential code.
  • The city or county must tell you within ten business days whether your application is complete, and what is missing if it is not.
  • It must approve or deny a complete application within 30 calendar days. It can pause the clock while either side waits on requested information, or while a state or federal approval is pending, and you and the city or county can agree in writing to extend it.
  • A denial must come with written reasons within seven days.
  • If the deadline passes, the application is deemed approved as submitted. The home still has to pass every inspection before you get a certificate of occupancy.

Electrical rules

Wyoming's electrical rules apply statewide. Under W.S. 35-9-120, electrical work in or on buildings, mobile homes and premises must meet the National Electrical Code, and new construction needs an electrical wiring permit, issued by the state's chief electrical inspector unless your city or county has local enforcement. The permit rule does not apply to farms or ranches of 40 acres or more on deeded land, but the work still has to meet code. W.S. 35-9-123 lets an owner wire their own property that is not for immediate resale without a licensed electrician, but the work still has to meet code.

Tiny homes on wheels

No Wyoming law we read uses the term tiny home or tiny house. Wyoming's motor vehicle law defines a house trailer as a trailer designed as a dwelling or sleeping place, equipped for use on streets and highways, and 8 1/2 feet wide or less (W.S. 31-1-101). That is a vehicle definition, and how a county treats one you live in is a zoning question.

How that plays out is not settled statewide, because each county writes its own rules. Two examples.

  • Teton County does not allow a camping trailer or RV to be used as living quarters, except temporarily alongside an active building permit for a home. When in use, a camper has to be in an authorized campground. You can store one on your own property when it is not in use.
  • Campbell County says you may be able to get a temporary use permit to live in an RV for up to one year while you build a house on a lot in a platted, zoned subdivision.

What it means for you is that a home on wheels you plan to live in may be treated like an RV, and many counties limit where an RV can be lived in. That is a local zoning question everywhere in the state, so call your county before you buy a home on wheels to live in, and ask the county clerk how it will be titled.

Modular and manufactured homes

Wyoming's motor vehicle law defines a modular home as a home built in a factory to a residential code other than the federal HUD code, and a manufactured home as a HUD-code home more than 8 1/2 feet wide (W.S. 31-1-101). The titling law calls a manufactured home a mobile home. An owner without a Wyoming title applies for one at the county clerk's office within 45 days, unless the home is on a permanent foundation and taxed as real property (W.S. 31-2-501 and 31-2-502).

  • We found no Wyoming law that limits how cities or counties zone manufactured homes, and no state program that approves modular homes. Both are local questions.
  • Where a county enforces a code, it may inspect factory-built homes. Laramie County, for example, requires testing, inspection and certification of prefabricated construction and a final inspection and certificate of occupancy before anyone lives in it.

ADUs

We found no Wyoming law that requires cities or counties to allow an ADU. The city and county zoning laws in Titles 15 and 18 of the Wyoming statutes do not mention them, so each city or county decides. Campbell County, for example, says an ADU is allowed in a residential zoned subdivision in most cases, with some restrictions. In 2023 a state task force moved a draft ADU bill forward, but we found no ADU law that passed. For ideas on building one, see advice for a tiny backyard ADU.

Septic and wells

Where there is no sewer, you need a septic permit before you build or change a system. Under W.S. 35-11-301, no one may build, install or change a sewage disposal system without a permit, and W.S. 35-11-304 lets the Department of Environmental Quality delegate small system permits to counties and cities that ask. DEQ issues the permits itself in Carbon, Niobrara, Platte and Weston counties. Elsewhere, ask the county. Teton County and Campbell County, for example, issue septic permits under DEQ delegation.

If you need a well, you need a permit from the State Engineer before you drill it, under W.S. 41-3-930. Build both into your timeline if you are buying raw land.

Where to start

  1. Not sure which office covers your land? USA.gov's local government finder points to a directory of Wyoming's counties and cities, with their websites and contacts.
  2. Call the city planning or zoning office, or the county if the land is outside city limits. Ask whether tiny homes, ADUs and homes on wheels are allowed there, and get the answer in writing.
  3. Ask the building department whether a building code applies to that land, which edition, and whether it includes the tiny house appendix.
  4. If the land is not on sewer, call the county septic office, or DEQ in Carbon, Niobrara, Platte or Weston County, about a permit before you buy.
  5. If you need a well, apply to the State Engineer's Office for a permit before drilling.
  6. For a home on wheels, ask zoning where you can live in it and for how long, and ask the county clerk how it will be titled.
  7. Ask who issues the electrical wiring permit, the county or city, or the state's chief electrical inspector.

From people who work in Wyoming

Before buying land or a small home, start with the local planning office. Confirm in writing that the type of home you want is allowed, and understand the requirements for utilities, access and placement. A HUD code manufactured home, a site built home and an RV aren't interchangeable when it comes to approvals.

One recent change worth checking is Wyoming's Fast Track Permits Act, which took effect July 1. It sets a 30 calendar day approval or denial window for qualifying complete residential permit applications in cities and counties that have adopted the residential building code, with exceptions and possible extensions. Buyers should ask the local building department whether their project qualifies rather than assume every small home does.

Matt Essig, Keystead at Wheatland

Living in Wyoming

How Wyoming compares with the other 49 states on the things people weigh before a move. Figures as of November 2026.

  • Happiness score (WalletHub 2026). 43.26 out of 100, 43rd happiest
  • Cost of living (MERIC, Q2 2026; U.S. average is 100). 94.4, 23rd lowest
  • State income tax. None
  • State sales tax. 4 percent
  • Property tax, effective rate on owner-occupied homes (Tax Foundation, 2024 data). 0.53 percent, 11th lowest
  • Homeowners insurance, average a year with $400,000 in dwelling coverage (NerdWallet 2026; U.S. average $2,490). $1,805
  • Health care (U.S. News). 38th
  • Education (U.S. News). 4th
  • Average temperature, 1991 to 2020. 42.3 degrees F
  • Average precipitation, 1991 to 2020. 16.0 inches a year
  • Sunshine in Cheyenne. 66 percent of possible sunshine, 106 sunny days a year

Wyoming has no state income tax, a 4 percent state sales tax and an effective property tax rate of 0.53 percent. Its cost of living is a little below the national average, 23rd lowest among the states. Homeowners insurance averages $1,805 a year with $400,000 in dwelling coverage, compared with a U.S. average of $2,490. U.S. News ranks Wyoming 4th in education and 38th in health care, and WalletHub ranks it 43rd happiest.

Rankings mix many factors, and statewide averages hide differences between regions. Towns, ranch country and mountain areas differ in land prices, local rules, winter conditions and whether you can get on sewer, so look at the area where you plan to live.

Tiny home communities in Wyoming

We could not confirm a Wyoming tiny home community that people can buy or lease into, or an RV park that takes tiny homes or park models for monthly or longer stays, on its own website as of November 2026. The listings we checked were directories, vacation lodging or campgrounds. We would rather list none than send you to one that does not exist.

If you find one, check its own website, ask whether you buy or lease the lot, whether year-round living is allowed and which home types it takes, and contact it directly before you plan around it. We will add communities here as we confirm them.

Tours we have filmed in Wyoming

We do not have a Wyoming tour to list here yet. When we do, it will be listed here. Our tours from other states are at Tiny Home Tours by State.

Get new tours and guides

Every other Friday we send real tours, results from our audience polls, and parking and legal lessons from people living tiny. Join the Tiny Home Tours newsletter.

Frequently asked questions

Is it legal to live in a tiny house in Wyoming?

Yes, on a permanent foundation where local zoning allows a house, if it meets whatever building code your city or county enforces and the state electrical rules, with sewer or a permitted septic system. For a tiny home on wheels, local zoning decides.

Can I park a tiny home on wheels on my own land in Wyoming?

It depends on your county or city. No Wyoming law we found defines a tiny home on wheels, and counties set their own rules. Teton County, for example, does not allow living in a camping trailer or RV outside an authorized campground, except temporarily alongside an active building permit for a home, and Campbell County says you may be able to get a temporary use permit to live in an RV for up to one year while you build.

Does Wyoming use Appendix Q for tiny houses?

Not statewide, because Wyoming has no statewide building code for houses. Cities and counties adopt their own. Laramie County and Teton County both adopted the 2024 International Residential Code with its tiny house appendix (Appendix BB in that edition) for land outside city limits. Ask your building department in writing whether it applies the appendix.

Can I build an ADU in Wyoming?

It depends on your city or county. We found no Wyoming law that requires them to allow ADUs, so each one decides. Campbell County, for example, says an ADU is allowed in a residential zoned subdivision in most cases, with some restrictions.

Do I need a septic permit for a tiny home in Wyoming?

Yes, if the land is not on sewer. You need a permit before you build or change a system, from your county or city where the Department of Environmental Quality has delegated it, or from DEQ in Carbon, Niobrara, Platte and Weston counties. A new well also needs a State Engineer permit before it is drilled.

Sources

This page explains the rules in general terms and is not legal advice. Local rules vary. Confirm with your city or county before you buy land or a home.

Hero photo: Grand Teton, by Toan Chu on Unsplash.

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