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OR directory
Prefab homes in Oregon: modular & ADU builders
Modular, ADU, and factory-built companies serving Oregon. Compare listings, then contact builders directly.
In this market
Oregon buyers search for prefab home builders in Oregon, ADU builders, tiny-home companies, and modular manufacturers, often in parallel. Prefably lists statewide modular home builders with ratings and company profiles so you can compare Portland-metro, Willamette Valley, and coastal options without lead forms.
Energy codes, moisture detailing, and ADU ordinances vary by city. Ask whether a package is modular to local code or HUD-code manufactured, and confirm delivery into your county. Open Prefably profiles for phone and website links when published.
Unclaimed listings are public directory records on Prefably. You can open each company profile to see location, ratings when published, phone when available, and the builder website, then contact them directly. We do not sell your inquiry as a lead. If you run the company, claim this listing free to correct details and mark it as claimed after our review.
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Directory
Modular home builders in Oregon
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Context
More about prefab in Oregon
Unclaimed listings stay visible until builders claim them free. Contact companies directly from this page, Prefably does not resell inquiries, then read our prefab-vs-modular and financing guides before you lock a deposit.
FAQs
Prefab homes in Oregon
How many prefab and modular builders does Prefably list in Oregon?
As of 2026, Prefably lists 38 factory-built home companies associated with Oregon 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.
Are ADUs legal statewide in Oregon?
Yes. Oregon HB 2001 requires cities over 2,500 to allow ADUs and other missing-middle housing on many single-family lots. Local dimensional standards and HOAs still matter.
How does Oregon energy code (Reach Code) apply?
Many Oregon-focused prefab builders ship Reach Code or Earth Advantage–oriented packages. Ask for the compliance path rather than assuming a national catalog base qualifies.
Modular vs manufactured in Oregon?
Modular on a permanent foundation is typically real-property lending. HUD-code manufactured homes use a different label and often a different loan product.
What site issues surprise Oregon buyers?
Seismic detailing west of the Cascades, wet-climate moisture control, and hillside lots in Portland metro. Confirm delivery radius and a written factory-vs-site scope before you deposit.
How do I find a local modular builder that delivers to my county in Oregon?
Use this directory to shortlist companies that advertise Oregon 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.