Idaho Statutes Title 39. Health and Safety § 39-4111. Permits required

(1) It shall be unlawful for any person to do, or cause or permit to be done, whether acting as principal, agent or employee, any construction, improvement, extension or alteration of any building, residence or structure, coming under the purview of the division, in the state of Idaho without first procuring a permit from the division authorizing such work to be done.

(2) It shall be unlawful for any person to do, or cause or permit to be done, whether acting as principal, agent or employee, any construction, improvement, extension or alteration of any building, residence or structure in a local government jurisdiction enforcing building codes, without first procuring a permit in accordance with the applicable ordinance or ordinances of the local government.

(3) Subject to building code requirements governing accessibility, no permit shall require that any improvement, extension or alteration of any building, residence or structure include an upgrade to comply with building code requirements in unaffected existing parts of the building, residence or structure where the existing parts complied with the applicable building code in effect when such parts were constructed. This limitation shall not apply where the division or enforcing jurisdiction identifies a specific substantial safety hazard that would be created in the existing building, residence or structure by reason of the new improvement, extension or alteration, provided that any additional permitting requirement shall be limited to correcting the specific substantial safety hazard. The burden shall be upon the division or enforcing jurisdiction to prove the existence of such specific substantial safety hazard. The permit shall identify the specific hazard and the basis for determining that it is a substantial hazard.