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ID directory
Prefab homes in Idaho: modular & ADU builders
Modular, ADU, and factory-built companies serving Idaho. Compare listings, then contact builders directly.
In this market
Idaho buyers exploring modular home builders, ADUs, and rural manufactured housing can compare statewide operators from Boise to Coeur d'Alene, the Magic Valley, and mountain towns. Prefably lists 44 factory-built companies advertising Idaho service.
Mountain and high-desert climate zones change envelope and foundation choices. Confirm snow loads, winter set practices, and whether the home is modular to local code or HUD-code manufactured.
Every row on this page links to a Prefably company profile. Listings start as Unclaimed public records drawn from business data; builders can claim them free to update contact info and specialties. Prefer profiles with published ratings and a working website, then request a written factory-vs-site scope before you deposit.
Nearby
Directory
Modular home builders in Idaho
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Maughan Construction / Magic Valley Home Center / Nashua Homes
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Champion Homes Manufacturing Facility
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Context
More about prefab in Idaho
Ground truth for Idaho buyers: the state runs a statewide modular program so pre-certified modules are generally accepted, but resort design review (Sun Valley and similar) can still block a catalog elevation. Boise, McCall, and Coeur d'Alene allow ADUs with typical size caps around 700 to 900 sq ft; HOAs often restrict style. Ask for snow-load engineering matched to your county, not a Treasure Valley default.
Open Prefably profiles, shortlist three firms with documented Idaho delivery, and request written factory-vs-site scopes. Unclaimed listings stay visible until companies claim them free.
Contact builders directly. Prefably does not auction buyer inquiries. Use our cost and financing guides when you budget well, septic, and winter access.
FAQs
Prefab homes in Idaho
How many prefab and modular builders does Prefably list in Idaho?
As of 2026, Prefably lists 33 factory-built home companies associated with Idaho in this directory (claimed and unclaimed). Counts change as companies claim profiles or we add listings — use the cards on this page for the current shortlist, then contact builders directly.
Is Idaho friendly to modular construction?
Yes. Idaho has a statewide modular program and allows pre-certified modular homes in all jurisdictions, though local design review (especially in resort areas like Sun Valley) can apply.
Do Idaho mountain towns allow tiny / ADU prefab?
Boise, McCall, and Coeur d'Alene allow ADUs with typical size caps of 700 to 900 sq ft. Resort-area HOAs frequently restrict architectural style.
What snow loads apply in Idaho?
They vary by county. Mountain and high-desert towns need engineering notes matched to the site, not a Treasure Valley default.
Modular vs manufactured in Idaho?
Modular on a permanent foundation is typically real-property lending. HUD-code manufactured homes use a different label and often a different loan product.
How do I find a local modular builder that delivers to my county in Idaho?
Use this directory to shortlist companies that advertise Idaho service, then ask each one to confirm haul routes, crane access, and set crews for your specific county, not just the nearest metro. Rural lots often need a site visit before a quote is real. Open Prefably profiles for ratings and websites, compare at least three written factory-vs-site scopes, and treat “statewide” marketing as a starting claim, not proof. Pair this page with our prefab-vs-modular and cost guides before you deposit.