White sand dunes and desert mountains in White Sands National Park, New Mexico.

Tiny Homes in New Mexico: Laws, Communities and Real Tours

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

The short answer

Yes, you can live in a tiny home full time in New Mexico, on a permanent foundation and where local zoning allows it. The state's residential code includes a tiny house appendix for homes of 400 square feet or less, and the same code says a tiny house on a chassis with a permanent axle is a recreational vehicle as long as the axle stays on. Water needs its own check here, since a new household well needs a permit from the Office of the State Engineer and the amount of water is capped. New Mexico has the 13th lowest cost of living of the 50 states, an income tax of 1.5 to 5.9 percent, an effective property tax rate of 0.63 percent (17th lowest), and homeowners insurance averaging $2,800 a year. We list one tour we filmed in New Mexico below.

On this page. Quick facts, the rules in plain words, water and wells, where to start, living in New Mexico, communities, our tours and common questions.

In New Mexico, the state writes the building code, and your county, or your city inside city limits, decides zoning. A tiny home on a permanent foundation, meaning it is anchored to a base built into the ground, like a concrete slab or a crawl space, is a house under the state code, and if it is 400 square feet or less, the code's tiny house appendix applies to it. A tiny home on wheels, built on a trailer so it can be towed, is treated as a recreational vehicle by both the state code and the Motor Vehicle Division, but where you can live in one is up to local zoning.

This guide covers the state code and its tiny house appendix, permits, homes on wheels, manufactured and modular homes, ADUs and the bills that did not pass, water rights and wells, septic and graywater, and the communities we could confirm.

Quick facts

On a foundation (anchored to a base in the ground): a house under the 2021 New Mexico Residential Building Code, in effect since July 14, 2023.
Tiny house rules: the code's Appendix AQ, for homes of 400 square feet or less, not counting lofts, with New Mexico's own loft and ladder rules.
On wheels (built on a trailer): a recreational vehicle under the state code and the Motor Vehicle Division while the axle stays on. Local zoning decides where you can live in one.
Permits: a building permit before you build, from the office with jurisdiction where you build. A homeowner permit lets you build your own primary home without a contractor's license if you do most of the work yourself.
ADUs (a second, smaller home on the same lot as a house): no statewide ADU law. Cities and counties set their own rules.
Wells: a new household well needs a permit from the Office of the State Engineer and is generally limited to 1 acre-foot of water a year, or 0.25 acre-foot in domestic well management areas.
Septic (an underground system that treats wastewater where there is no city sewer): a permit from the New Mexico Environment Department before you install one.

Can you live in a tiny home full time in New Mexico?

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

On a foundation, a tiny home is a house. It has to meet the New Mexico Residential Building Code, including the tiny house appendix if it is 400 square feet or less, and it needs sewer or a permitted septic system and a legal water source.
On wheels, the state code treats it as a recreational vehicle while the axle stays on. We found no state law that allows or bans living full time in one. Local zoning decides.
We found no statewide minimum house size in the residential code. Ask your county or city whether it sets one.

The rules in plain words

Building code

New Mexico's code for one and two family homes is the 2021 New Mexico Residential Building Code (14.7.3 NMAC). It adopts the 2021 International Residential Code with New Mexico's changes and took effect July 14, 2023. After December 14, 2023, permits may be issued only under this code.

The tiny house appendix

The national code has an appendix with rules for tiny houses. New Mexico adopts it as Appendix AQ and replaces the model text with its own (14.7.3.28 NMAC), last amended January 13, 2025. A tiny house is "a dwelling that is 400 square feet (37 m2) or less in floor area excluding lofts," on a permanent foundation. A tiny house built in another state and brought into New Mexico is inspected to New Mexico's code too.

Under Appendix AQ:

Ceilings in living spaces and hallways must be at least 6 feet 8 inches. Bathrooms, toilet rooms and kitchens can be as low as 6 feet 4 inches. Lofts can be lower.
All lofts together can take up no more than 40 percent of the home's floor area.
A loft must have at least 35 square feet of floor and be at least 5 feet wide in every direction. Floor under a ceiling lower than 3 feet does not count toward that area, or lower than 16 inches under a gable roof with a slope of at least 6 in 12.
Stairs to a loft can be as narrow as 17 inches at or above the handrail. Ladders must be permanently attached, with rungs at least 12 inches wide, spaced 10 to 14 inches apart, able to hold 200 pounds on any rung, and a loft reached by a ladder can be no more than 8 1/2 feet above the main floor.
Loft guards must be at least 36 inches high, or half the clear height to the ceiling, whichever is less.
The home still needs emergency escape openings, including in lofts of 35 square feet or more. A roof window in a loft can count if the bottom of the opening is no more than 44 inches above the loft floor.

If you would rather skip the loft, see tiny home layouts without a loft.

Permits

The state's permit rule (14.5.2 NMAC) says building work needs a permit from the authority having jurisdiction before it starts. The state's Construction Industries Division takes permit applications online, but ask your county or city first which office is the authority for your address. A homeowner permit lets you build or alter your own primary residence without becoming a licensed contractor. It is limited to that home, and you have to do most of the work yourself, measured by dollar amount, though you can hire licensed contractors for parts of it.

Tiny homes on wheels

Two state sources agree on the label. The tiny house appendix says "Tiny houses constructed on a chassis with permanent axle shall be considered recreational vehicles and shall meet codes for and be licensed as recreational vehicles so long as the axle remains in place." If the axles come off and the home is set on a foundation, it has to meet the foundation rules. The Motor Vehicle Division's manual repeats the first sentence, says such a home is issued a recreational vehicle license plate, and says that plate is not issued once the home is on a foundation.

What is not settled is everything after the label.

The code says the home must meet the codes for recreational vehicles, but it does not name which standard. A tiny home on wheels built to a recognized RV or park model standard fits the label more clearly. A homemade one may not clearly meet any, and we found no state guidance on how it is inspected to an RV standard.
Titling a homemade one is not settled either. The Motor Vehicle Division's tiny house section says a tiny house on a permanent axle gets a recreational vehicle plate. Its section on homemade vehicles says a homemade trailer gets a trailer plate after a vehicle number inspection, a weight certificate, an equipment check and a number the state assigns. The manual does not say which path a homemade tiny home on wheels takes.
Neither source says where you can live in an RV. That is a local zoning question, and we found no state law that allows or bans living full time in one on private land.

So the label is clear, but whether you can park it and live in it on a given piece of land is a county or city answer. Get it in writing before you buy, and ask the Motor Vehicle Division how a homemade home will be titled.

Modular and manufactured homes

A manufactured home is built to the federal HUD code. The state's Manufactured Housing Division is the inspection authority for manufactured housing in New Mexico and inspects installations and alterations. State law (Section 3-21A-3 NMSA) says a county or city cannot exclude multi-section manufactured homes from a district where site-built single family homes are allowed, or hold them to stricter rules, as long as the home is built to what the statute calls the Housing and Urban Development Zone Code II or the Uniform Building Code. A county or city can still require the home to fit historic or aesthetic standards. The same law (Section 3-21A-2 NMSA) defines a multi-section home as a factory-built manufactured or modular single family home of at least 864 square feet, at least 36 by 24 feet, installed under the state's permanent foundation rules. So the protection covers multi-section homes of that size, not single-section or tiny ones.

ADU rules

New Mexico has no law that requires counties or cities to allow an ADU. Two recent bills tried.

House Bill 554 (2025) passed the House 50 to 10 on March 11, 2025, and died in the Senate.
House Bill 17 (2026) would have required at least one ADU on each residential lot. It died in committee in the 2026 session.

Since 2007, state zoning law (Section 3-21-1 NMSA) has required zoning authorities to "accommodate multigenerational housing by creating a mechanism to allow up to two kitchens within a single-family zoning district, such as conditional use permits," for people related by blood, marriage, guardianship or adoption. That is a second kitchen for family, not a law allowing a second home on the lot, and each zoning authority decides how it works.

Counties and cities set their own ADU rules. Two examples:

Albuquerque has allowed casitas on residential lots since July 27, 2023, when its zoning change O-22-54 took effect, and the city lists the R-A, R-1, R-T and R-ML zones as places they are allowed. A casita can be up to 750 square feet and no more than 25 percent of the side and rear yards combined, has to sit behind the rear wall of the main house, can be no taller than the main house, and needs one off-street parking space.
Santa Fe County allows one ADU per legal lot where its use table permits one, with heated space up to half the main home's or 1,400 square feet, whichever is less, and the ADU shares water and electricity with the main home (county code section 10.4, read on a third-party code site).

City and county rules do not override deed restrictions or HOA covenants, so check those too.

Water rights and wells

Groundwater in New Mexico is managed by the Office of the State Engineer, and its domestic well rule (19.27.5 NMAC) sets the terms for a household well.

A new household well needs a permit from the State Engineer. The application fee for a new domestic well permit is $125, and the permit can require that the well be built by a driller licensed in New Mexico (small driven wells are the exception).
A single household well is limited to 1 acre-foot of water a year. The rule allows up to 3 acre-feet only in areas where the applicant shows the State Engineer that the combined pumping from household wells will not impair existing water rights.
In domestic well management areas, new wells are generally limited to 0.25 acre-foot a year.
A court, or a county or city ordinance, can set stricter limits, so the State Engineer's cap is the most you can count on, not a promise.
A well must be at least 50 feet from another owner's well unless a variance is granted, and septic setbacks apply too.
Replacing or deepening a well also needs a permit, and so does any repair that uses a drill rig.

The State Engineer also warns that as groundwater levels drop, wells with shallow pumps may produce less, and an owner may have to lower the pump, deepen the well or replace it. Before you buy, look up the well record, ask whether the land is in a domestic well management area, and ask the county whether any local limit applies.

Rainwater is another piece. The State Engineer says most homeowners can install and use a rainwater system to water plants and yards without a permit from the State, and that larger commercial projects should check with its Water Rights Division. It encourages collecting rain from roofs for watering plants and other household uses on the same site, as long as the collection does not reduce the runoff the site would have had in its natural state, and it sends water quality questions to the Environment Department. Its page does not say whether rainwater can be your drinking water, so ask the Environment Department before you plan a home around a cistern.

Septic and graywater

The New Mexico Environment Department writes the septic rule (20.7.3 NMAC). You need a department permit before you install a new onsite system. A conventional septic system generally cannot be installed on a lot smaller than three quarters of an acre, with some exceptions in the rule. The septic tank must be at least 50 feet from a private well, and the disposal field at least 100 feet.

Graywater, the water from sinks, showers and laundry, has its own allowance. A household can use less than 250 gallons a day of its own graywater for flower gardens, composting or watering the yard without a permit, if the system meets the rule's conditions, such as overflow into the sewer or septic system, a covered storage tank and a location outside a floodway.

If you plan to use a composting toilet, know that the Environment Department's rule says it must be installed under the New Mexico plumbing code and the local plumbing authority, and that adding one does not reduce the property's design flow, which the rule uses to set the minimum lot size for a septic system. Ask the Environment Department and your local plumbing office how it affects your permit, since the home will still produce sink and shower water.

Where to start

Not sure which office covers your land? USA.gov's local government finder points to a directory of New Mexico's counties and cities, with their websites and contacts.
Call the county planning department, or the city if the land is inside city limits. Ask whether tiny homes and ADUs are allowed, whether there is a minimum house size, and whether a tiny home on wheels can be lived in there. Get the answer in writing.
Ask which office issues building permits for that address.
Before you buy land, check the water. Look for an existing well record, ask the Office of the State Engineer whether the land is in a domestic well management area, and ask the county about local limits.
If the land is not on sewer, ask the New Mexico Environment Department whether the lot is large enough for a septic system.
For a manufactured home, check the HUD label and ask the Manufactured Housing Division about installation.
For a tiny home on wheels, ask the Motor Vehicle Division how it will be titled before you buy.
Check the flood map, any deed restrictions and any HOA covenants.

From people who work in New Mexico

Contact the local government to inquire about local zoning laws and what is allowed, as rules vary by municipality. When looking at a community, ask if they use municipal water and sewer or their own systems. If privately owned, ask about the age of the septic system and when the well was last tested.

Many new residents have never hooked up an RV and do not account for gravity when setting up accordion-style sewer lines. Many owners do not know whether their home is wired for 30-amp or 50-amp service, nor do they carry standard electrical adapters. And homes with off-grid water tanks do not need to store water in the tank when hooked up to grid service. Leaving water in the tank leads to algae growth; bypass valves should be used instead.

JC, River Edge Tiny Home Village

Living in New Mexico

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

Happiness score (WalletHub 2026). 43.10 out of 100, 44th happiest
Cost of living (MERIC, Q2 2026; U.S. average is 100). 90.2, 13th lowest
State income tax. Graduated, 1.5 to 5.9 percent
Property tax, effective rate on owner-occupied homes (Tax Foundation, 2024 data). 0.63 percent, 17th lowest
Homeowners insurance, average a year with $400,000 in dwelling coverage (NerdWallet 2026; U.S. average $2,490). $2,800
Health care (U.S. News). 40th
Education (U.S. News). 50th
Average temperature, 1991 to 2020. 54.5 degrees F
Average precipitation, 1991 to 2020. 13.8 inches a year
Sunshine in Albuquerque. 76 percent of daylight hours, 167 sunny days a year
People 65 and older (2024). 20.2 percent

New Mexico's cost of living is below the national average, and utilities are the lowest part of that index. The state income tax runs from 1.5 to 5.9 percent, and the effective property tax rate is 0.63 percent. Homeowners insurance averages $2,800 a year with $400,000 in dwelling coverage, compared with a U.S. average of $2,490. U.S. News ranks New Mexico 40th in health care and 50th in education, and WalletHub ranks it 44th happiest.

Rankings mix many factors, and statewide averages hide big differences between regions. The high desert, the mountains of the north and the southern deserts differ in weather, water, land prices and local rules, so look at the area where you plan to live.

Tiny home communities in New Mexico

Few New Mexico communities for tiny homes publish their details online, and we could confirm only two on their own websites. Rules, prices and openings change, so contact each one directly before you plan around it.

River Edge Tiny Home Village, Rio Communities, south of Albuquerque, along the Rio Grande. A community for long-term residents with 34 lots, most with room for two cars, a shed and a yard. Lot rent is $500 a month including trash (as of October 2026). Pedestals are 50 amp (30 amp homes need an adapter); park models needing 100 amp service need a licensed New Mexico electrician to hardwire it. A few lots are open, and tiny homes come up for sale from time to time.
Centennial Village, Alamogordo. Its website describes an all-adult, 55 and older tiny home community with a clubhouse, and says homes for sale or rent are posted on its Facebook page. Call to check what is available.

Ask each one about year-round living, availability and current prices.

Tours we have filmed in New Mexico

Here is the New Mexico tour we can list. The video description says more where the owner is happy to share it. Our tours from other states are at Tiny Home Tours by State.

Her Custom Tiny House That's Breaking All The Rules, Laura's do-it-yourself tiny house on a gooseneck trailer.

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 New Mexico?

Yes, on a permanent foundation, if it meets the New Mexico Residential Building Code and local zoning, with sewer or a permitted septic system and a legal water source. For a tiny home on wheels, local zoning decides.

Does New Mexico use Appendix Q for tiny houses?

Yes. New Mexico adopts the tiny house appendix as Appendix AQ in its residential code (14.7.3.28 NMAC), with its own text, for homes of 400 square feet or less, not counting lofts. It sets ceiling heights, loft sizes, and stair and ladder rules, and caps all lofts at 40 percent of the floor area.

Is a tiny home on wheels an RV in New Mexico?

Yes, while the axle stays on. The state code and the Motor Vehicle Division both say a tiny house on a chassis with a permanent axle is a recreational vehicle. Where you can live in one is up to your county or city, so get its answer in writing before you buy.

Can I drill a well for a tiny home in New Mexico?

Yes, with a permit. A new household well needs a permit from the Office of the State Engineer, and the permit can require a driller licensed in New Mexico. A single household well is generally limited to 1 acre-foot of water a year, or 0.25 acre-foot in domestic well management areas, and a court or local ordinance can set stricter limits.

Do I need a septic permit for a tiny home in New Mexico?

Yes, if the home will not be on a sewer. You need a permit from the New Mexico Environment Department before you install a new septic system, and a conventional system generally needs a lot of at least three quarters of an acre.

Sources

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

Hero photo: White Sands National Park, by Caleb Jack on Unsplash.