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Best in-law suite houses Available for Montana | My Home Floor Plans

Find the Right in-law suite house for Your Montana Property

Need a stylish, code-ready in-law suite house for Montana? Our curated designs are perfect for backyard builds, ADUs, or second homes.

Plans come with engineering, CAD & PDF files, and full rights to build — without paying extra for each copy.

Every layout is designed with Montana zoning, space constraints, and construction standards in mind.

Why Choose Our in-law suite house in Montana?

CAD & PDF Files Included – Get full architectural drawings in editable and printable formats.
Engineered for Compliance – Professionally reviewed for Montana building code requirements.
Unlimited Build License – Construct your in-law suite house multiple times with zero extra cost.
Foundation Customization – Choose slab, crawlspace, or basement — free with any plan.
Modifications Available – Tweak size, layout, or finishes to suit your exact needs.

These plans are flexible, modern, and built to work with Montana permitting standards. Perfect for homeowners or developers needing an easy, code-friendly in-law suite house solution.

Explore Style Options for in-law suite house in Montana

These architectural styles are especially popular among Montana homeowners looking to blend style with efficiency. Every in-law suite house plan is thoughtfully crafted for aesthetic and function.

FAQs: in-law suite house Plans for Montana

What type of structure is a in-law suite house?

in-law suite house blueprints typically refer to a detached guest house or accessory unit used for rentals, extended family, or private retreats. All designs are customizable for Montana.

How do I customize the layout?

Our team can modify size, walls, porches, or other features to suit your Montana lot. Turnaround time for customizations is fast and cost-efficient.

Is engineering included for Montana?

Yes. Every in-law suite house plan comes with structural engineering included, designed to meet local codes in Montana.

Do I get editable files?

Absolutely. We provide both CAD and PDF formats, giving you full control to share with architects or builders in Montana.

Our Plans Are Built, Not Theorized

Unlike most plan websites, our in-law suite house options in Montana are based on actual construction data. With CAD + PDF files, structural reviews, and field-tested layouts, every plan is practical, accurate, and up to code.

Designed for Montana, built anywhere — our in-law suite house plans meet national IRC guidelines while accommodating Montana zoning and lot constraints.

Start Your in-law suite house in Montana with Confidence

Our blueprints are pre-approved, customizable, and ready to build anywhere in Montana. Every plan includes CAD, PDF, and full support for permitting.

Have questions? Get in touch or see more house styles now.

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12-2629 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 64'-2"

Depth: 60'-8"

Htd SF: 4,886

Unhtd SF: 1,622
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8-1160 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 45'-10"

Depth: 72'-6"

Htd SF: 5,705

Unhtd SF: 1,028
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SALE! $1,141.59 Sale! Quickview
18-1323 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,014.56.Current price is: $1,141.59.

Width: 45'-0"

Depth: 47'-0"

Htd SF: 2,929

Unhtd SF: 720
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17-1739 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 81'-8"

Depth: 94'-1"

Htd SF: 4,501

Unhtd SF: 1,409
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8-1303 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 54'-6"

Depth: 77'-0"

Htd SF: 4,300

Unhtd SF: 591
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20-1922 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 46'-4"

Depth: 48'-0"

Htd SF: 2,966

Unhtd SF: 992
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20-1683 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 71'-0"

Depth: 66'-5"

Htd SF: 3,269

Unhtd SF: 1,659
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20-1675 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 51'-0"

Depth: 62'-0"

Htd SF: 4,478

Unhtd SF: 1,377
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20-1623 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 74'-4"

Depth: 61'-9"

Htd SF: 4,005

Unhtd SF: 1,990
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20-1349 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 83'-2"

Depth: 56'-7"

Htd SF: 3,109

Unhtd SF: 1,899
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19-2509 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 48'-8"

Depth: 64'-0"

Htd SF: 3,265

Unhtd SF: 1,316
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19-2305 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 76'-8"

Depth: 65'-10"

Htd SF: 3,361

Unhtd SF: 794
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18-1472 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 94'-6"

Depth: 83'-4"

Htd SF: 4,609

Unhtd SF: 2,377
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18-1080 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $2,446.56.Current price is: $1,386.39.

Width: 61'-0"

Depth: 80'-7"

Htd SF: 3,740

Unhtd SF: 1,402
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12-2938 HOME PLAN – House plan details
Rated 5.00 out of 5
Original price was: $3,598.56.Current price is: $2,039.19.

Width: 118'-0"

Depth: 70'-10"

Htd SF: 5,884

Unhtd SF: 1,904