Do I need a permit for plumbing fixture or repiping in Unincorporated Multnomah County?
Yes. In Oregon, plumbing fixture or repiping generally requires a permit, and Unincorporated Multnomah County is no exception.
BCD lists altering piping inside a wall, ceiling, or under a floor as work that needs a plumbing permit, and emergency replacement of concealed freeze-damaged or leaking piping needs a permit if the new piping exceeds five feet. The statutory exemption for ordinary minor plumbing repairs does not cover new construction, water heaters, or underground plumbing (ORS 447.072). An owner may do plumbing on a building they own (ORS 693.020), but a business doing plumbing for hire must hold a plumbing contractor license (ORS 447.040).
Local detail for Unincorporated Multnomah County: Multnomah County handles zoning only. Building permits for unincorporated areas are issued under agreement by the City of Gresham (most of unincorporated east Multnomah County), the City of Portland, or the City of Troutdale, depending on the address. The office listed is Gresham Permit Services; confirm which city serves your address.
Documents you may need
- Plumbing permit applicationRequired
- Fixture count and pipe material and sizingLikely required
- Plumbing contractor license if hiring outLikely required
Possible inspections
- Rough-in plumbing inspection with pressure test before walls are closed
- Final plumbing inspection
Frequently asked questions
- Do I need a permit for plumbing fixture or repiping in Unincorporated Multnomah County?
- Yes. In Oregon, plumbing fixture or repiping generally requires a permit, and Unincorporated Multnomah County is no exception. The documents and inspections sections on this page list what the building department typically asks for.
- Who issues the permit in Unincorporated Multnomah County?
- The local building department for Unincorporated Multnomah County handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.