Park Model Homes in Montana

What is a park model in Montana?

No Montana statute we read defines a park model. State health rules allow park model homes in licensed trailer courts, and sanitation rules classify park trailers as recreational camping vehicles. Montana sets no park model size limit, so the 200 sq ft studios stand on the same footing as the larger models.

Irontown’s nine park models are built to ANSI A119.5. Six are 330 to 398 sq ft, and three are 200 sq ft studios. All are 10 to 14 ft wide and ship on wheels on a single chassis. They have no holding tanks, so your site needs sewer or septic, water and electric hookups.

Where can you place a park model in Montana?

Montana placement rules depend on your parcel, its zoning and your intended use. We strongly recommend contacting your local planning or building office. Before ordering, you must confirm requirements with local planning/building staff, the county sanitarian and any park involved.

What Montana state law says

These summaries reflect statutes, state rules and local codes read in September 2026. A construction standard does not grant permission to occupy a lot. MCO can share the code sections it found and suggest questions.

• No statute we read defines park models. ARM 37.111.1201 names park model homes in licensed trailer courts; ARM 17.36.101 classifies park trailers as recreational camping vehicles. Montana sets no minimum or maximum size, so all nine models, including the 200 sq ft studios, receive the same state treatment.
• Zoning is optional and local under MCA 76-2-101 and 76-2-201. Counties may zone whole counties or small districts, and cities have separate codes. Where there is no zoning, the septic permit, the lot’s state sanitation certificate and covenants still apply.
• Without zoning, you still face septic permits, the lot’s state sanitation certificate, covenants and floodplain rules. DEQ sanitation review covers parcels under 20 acres and any parcel with two or more permanent RV or mobile home spaces. A Certificate of Subdivision Approval may need revision for another hookup (MCA 76-4-130). State electrical permits apply; plumbing permits apply unless you do the work personally.
• Renting brings separate review. Under MCA 76-8, one to three rented spaces need sanitation review and a recorded certificate; four or more need county review. Every county subdivision regulation we read treats two or more rented RV spaces as a subdivision or campground. Annual DPHHS licensing also applies to campgrounds, trailer courts and public sleeping accommodations; ask the county sanitarian which licence fits one rented park model.
• MCA 76-2-345 requires cities to allow one ADU on a single-family lot; MCA 76-2-215 applies where counties have adopted zoning. Neither grants a clear route for a unit on wheels. No Montana city code we read accepts a park model as an ADU as written. Montana’s tiny dwelling and building-code tiny house routes require permanent foundations.
• We found no statewide RV park stay limit. City, county and park rules set the limits. In licensed trailer courts or campgrounds, hookups lasting more than 30 days must meet the plumbing code (ARM 37.111.1201 to .1233).

County rules for unincorporated land

These summaries cover unincorporated land. Town names locate the area; incorporated towns may have separate rules. Ask which jurisdiction and zoning district cover your parcel. Big Sky is not a city: Gallatin County or Madison County rules apply.

Cities have their own rules

City limits can change your options. Several codes define RVs too narrowly for a 10 to 14 ft park model. Larger cities generally point you toward RV parks, with local stay limits. No city code we read accepts a park model as an ADU as written.

Own a resort, RV park or campground? Plan sewer or septic, water and electric at each site. Two or more RV spaces need DEQ sanitation review; campgrounds and trailer courts need annual DPHHS licences. Rented spaces also face county rental or subdivision review. Local stay limits vary. Cascade County permits RV parks in its Agricultural zone. For customer-owned units on leased lots, review MCA 70-33 with your lawyer; it may apply. Explore Park model cabins for resorts and campgrounds.

Montana has no statewide answer. In Sanders, Madison and most of Ravalli County, no zoning rule stands in the way; the gates are the septic permit, the lot’s state sanitation certificate and covenants. That route needs county confirmation. The zoned county rules we read treat RVs as short or seasonal stays, or stays while you build; none names a park model as a year-round home. Larger cities we read point park models toward RV parks. We have not read Sweet Grass, Broadwater, Anaconda-Deer Lodge, Meagher or eastern Montana counties, so ask first there.

Explore Irontown’s nine park models for Montana

Choose six layouts of 330 to 398 sq ft or three 200 sq ft studios. Designer Series starting prices range from $108,400 to $167,200 for larger models and $65,800 to $68,600 for studios. Finish series include Designer, Modern, Balance and Rustic.

Cabana 300

330 sq ft · 12 ft x 27 ft 6 in · from $112,000

You get a 330 sq ft studio with full bath and kitchenette.

See the Cabana 300 park model

Sledhaus Mini

355 sq ft · 12 ft x 30 ft · from $108,400

Your layout includes a great room, kitchen and bath.

See the Sledhaus Mini park model

Mysa 400

397 sq ft · 14 ft x 32 ft · from $121,200

You get a king-bed bedroom, full bath and kitchen with dry bar, plus an optional covered deck.

See the Mysa 400 park model

Sledhaus 400

397 sq ft · 14 ft x 32 ft · from $127,300

You get one bedroom, big windows and warm wood tones, with optional storage loft and deck.

See the Sledhaus 400 park model

Skyview 400

398 sq ft · 13 ft x 33 ft (44 ft with deck) · from $157,100

You get a tall wall of windows, high ceilings, storage loft and built-in deck.

See the Skyview 400 park model

Cabana 400

397 sq ft · 14 ft x 32 ft · from $167,200

You get one bedroom, bath and kitchen with dry bar, plus optional covered deck and full galley kitchen.

See the Cabana 400 park model

Cabana 200

200 sq ft · 10 ft x 20 ft · from $65,800

Your 200 sq ft open studio offers optional bathroom, kitchenette and deck.

See the Cabana 200 park model

Mysa 200

200 sq ft · 10 ft x 20 ft · from $67,200

Your 200 sq ft open studio offers optional bathroom, kitchenette and deck.

See the Mysa 200 park model

Sledhaus 200

200 sq ft · 10 ft x 20 ft · from $68,600

Your 200 sq ft open studio offers optional bathroom, kitchenette and deck.

See the Sledhaus 200 park model

Estimate your model and Montana delivery cost

All of Montana is beyond the included delivery miles. Delivery includes the first 250 miles from Spanish Fork, then $12.75 per mile. West Yellowstone delivery is about $1,500; Bozeman is about $2,700. Choose your nearest town and model in the calculator.

Irontown’s nine park models travel as oversize loads. The carrier obtains the Montana Department of Transportation permit. Under ARM 18.8.509 and 18.8.511A, interstate travel may occur at any hour; off-interstate loads over 10 ft wide travel only in daylight.

Off-interstate loads over 12 ft 6 in wide need a front pilot car and cannot travel on holidays or holiday weekends. Severe driving conditions can close a route to these loads. The permit sets final conditions. Pilot cars cost extra; setting the unit is quoted separately.

What your model and delivery estimate does not include

• Site work and pad
• Tie-downs, skirting and steps where required
• Utility hookups by licensed trades with permits
• Septic permit, state sanitation review and other permits
• Title and registration or property tax
• Setting the unit on site
• Pilot cars

The Montana Department of Revenue states that Montana does not have a general sales tax. Your quote shows any tax that applies to the sale. Title and registration go through the county treasurer; Montana gives 40 days. How Montana will title and tax a park model is not settled in the text we read. Before ordering, ask your county treasurer and county Department of Revenue office how they will handle an ANSI A119.5 park model that is 10 to 14 ft wide.

How to get started

1. Share your plans. Tell MCO your location, parcel size and intended use. Your quote includes free zoning guidance, with rules we found and suggested questions.
2. Call the local offices. Contact county planning, or find out whether there is an office, and the county sanitarian about septic permits and the lot’s sanitation certificate. Before ordering, you must confirm requirements with local planning/building staff, the county sanitarian and any park involved.
3. Choose your model. Select your layout, finish series and options. Ask the county for the site’s snow load and MCO for the model’s roof rating.
4. Review your quote. Include delivery miles, site costs, hookups, permits, setting and pilot cars in your budget.
5. Plan delivery. MCO remains your direct point of contact. The carrier obtains the oversize permit; route, width and winter conditions affect timing.

Visit the factory in Spanish Fork

Schedule your factory visit in Spanish Fork, Utah, about an hour south of Salt Lake City International Airport. The drive is about six and a half hours from West Yellowstone or eight hours from Bozeman.

Common Questions

This is a plain-language summary of rules as we read them in September 2026, not legal advice or an approval. Rules change, and your local planning or building office decides how its rules apply. You are responsible for confirming zoning, permits and code compliance, obtaining any required permits, and confirming any park requirements with the park before ordering.

Get your quote and free zoning guidance

Tell My Cozy Outdoors your location, parcel size and intended use. Your quote includes free zoning guidance: rules we found as a starting point and suggested questions. Before ordering, you must confirm requirements with local planning/building staff, the county sanitarian and any park involved.