Twin Falls, ID Building Safety: Plumbing Permits (2026)

Section 4-3-2 of the Twin Falls City Code makes it unlawful for any person, firm, copartnership, association or corporation, acting as principal, agent or employee, to do or permit any construction, installation, improvement, extension or alteration of any plumbing system in any building, residence or structure, or service lines to it, without first procuring a permit from the city of Twin Falls. The one head start is for a licensed plumber, who after making application and pending receipt of the permit can proceed and complete improvements or alterations when the cost does not exceed five hundred dollars ($500.00).

Inspection of that work is the responsibility of the permit holder pending an official inspection, which is made within sixty (60) days after notification of inspection. Section 4-3-1 adopts the Idaho plumbing code, as it is amended, revised, compiled and published from time to time and as amendments are adopted by the Idaho plumbing board, as the official plumbing code for the city of Twin Falls. Under section 4-3-3 the applicant pays the permit fee at the time of application, in accordance with the schedule fixed by resolution of the city council.

Section 4-3-4 reaches anyone who practices plumbing without a certificate of competency or without registration, performs work without a permit, or refuses a lawful order of the building official. Section 4-1-2 also amends section R105.2 of the international residential code to delete the last two paragraphs beginning with "The stopping of leaks..." and "The clearing of stoppages..." in their entirety.