Tiny home rules in Clackamas County, OR — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
A tiny home on a foundation is treated as a dwelling or ADU under Clackamas County's ZDO (Section 839 for ADUs). A tiny house on wheels is an RV and cannot be permanent housing except where ZDO Section 846 allows an RV as a second dwelling. Oregon adopted a tiny-home
Clackamas County has no separate 'tiny home' category; how it is regulated depends on how the unit is built. A tiny house on a permanent foundation is simply a small dwelling or ADU and must meet ZDO Section 839 and the Oregon Residential Specialty Code (Oregon adopted Appendix Q for tiny houses 400 sq ft or less). A tiny house on wheels is legally a recreational vehicle; it cannot be occupied as a permanent residence in most zones, but ZDO Section 846 allows an RV to be used as a second dwelling on a lot in limited circumstances. Occupancy, septic and setback rules still apply. Cities within the county set their own tiny-home policies.
Living full-time in a tiny house on wheels outside the ZDO 846 allowance, or siting a tiny dwelling without permits, is a zoning violation subject to Code Enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Oregon law (ORS 569) declares noxious weeds a public nuisance to be controlled on all lands. Clackamas County runs the WeedWise program (since 2009) through ...
See how Clackamas County's tiny homes rules stack up against other locations.
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