Can I Put a Tiny House on My Property in Oregon? Here's What You Need to Know

Short answer: in many cases, yes. Oregon allows tiny homes — both on foundations and on wheels — in many parts of the state, and ADU laws have made it easier than ever to add a small dwelling to your property. But there are rules — and they matter. 
 
The ADU Framework 
 
Oregon requires cities with populations over 2,500 and counties with populations over 15,000 to allow at least one ADU per single-family dwelling within their urban growth boundaries. If your property qualifies, you can build or place a tiny home as an ADU — whether that's a new build, a converted structure, or (in some cases) a THOW. 
 
What Kind of Tiny Home Can You Place? 
 
Foundation-based tiny home: Must comply with Oregon's Residential Specialty Code (ORSC). Treated like a traditional ADU. Needs permits and inspections just like any other residential structure. 
 
Tiny home on wheels: More complicated. Oregon generally prohibits living full-time in RVs outside of designated parks. But THOWs are treated differently in some jurisdictions — especially Portland, Eugene, and Bend. In Portland, THOWs are considered ADUs and are permitted in all residential zones. 
 
Key Requirements 
 
Your tiny home needs to meet local building codes — insulation, structural integrity, fire safety, and utility connections. If it's a THOW, it may need to be licensed by the Oregon Department of Transportation. You'll likely need a building permit. And the property must already have a primary residence on it (for most ADU designations). 
 
Counties That Have Adopted SB 1013 
 
As of 2025, Clackamas, Deschutes, and Lane counties have formally adopted SB 1013, which provides a more streamlined path for THOWs in certain zones. Each county has slightly different requirements — full utility hookups, paved or graveled pad, and permit requirements under their specific zoning codes. 
 
Can Cocoon Homes Help? 
 
Yes. We've built in Oregon, and we know the permitting landscape. For insights on the best areas to live in a tiny home in Oregon, see our dedicated guide. If you're looking at placing or building a tiny home on your Oregon property or any other state, we'd love to help you figure out the path forward. 
 
Talk to us at mycocoonhomes.com