Corvallis, OR Building Safety: Plumbing Permits (2026)

Corvallis enforces plumbing standards through the Oregon Plumbing Specialty Code, adopted by Corvallis Municipal Code Section 9.01.130.010 under OAR 918-750-0110, with the city's own Chapter 9.01 procedures governing how the permit is applied for, issued, and inspected. Under Section 9.01.100.010, the Building Official reviews the application and construction documents and issues the permit once the work conforms to the code and the fees are paid; the approved documents must stay on site and cannot be altered without the Building Official's written authorization. A permit becomes invalid if work does not start within 180 days of issuance or is abandoned for 180 days after starting, per Section 9.01.100.050, though the Building Official can grant extensions of up to 180 days each on written request, and a lapsed permit can be reinstated for half the original fee if requested within a year and nothing in the plans or code has changed.

Section 9.01.100.090 makes it the permit holder's duty to request every required inspection, keep the work exposed for inspection, and keep the approved permit and documents on site until final approval. Starting plumbing work before a permit is issued triggers a special investigation under Section 9.01.100.060, and the City can charge an investigation fee whether or not it later issues the permit; the same section makes unpermitted work subject to the civil penalties in Section 9.01.210. Community Development's Development Services Division, under the Building Official, administers and inspects all work under this code.