Bannock County, ID Building Safety: Building Permits (2026)

Section 15.04.040 states that the Bannock County Building Code governs the erection, construction, enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy, use, height, and area of buildings and structures in all unincorporated areas of the county, adopting the IBC, IRC, IECC, IEBC and other model codes to carry that out. The building official, or a designee, is responsible for administering and enforcing the code under Section 15.04.110, and may require comment or approval from other agencies before issuing a permit or a certificate of occupancy under Section 15.04.120.

The county trimmed the IRC's default exempt-work list when it adopted the 2018 edition in Section 15.04.200, keeping only a narrow set of exemptions, including prefabricated swimming pools four feet deep or less and flagpoles; nearly everything else, from a new home to an addition, needs a permit. Once a permit is required, Section 15.04.140 bases the fee on the ICC Building Valuation Data Table published every February, applying a 0.95 regional cost modifier to single-family (R-3) work and 0.85 to accessory garages, with the printed schedule in Appendix A's Table No.

1-A running from $23.00 for work valued at $500 or less up to $5,608.75 plus $3.15 per additional $1,000 above $1,000,000. An applicant who disagrees with a permit decision has ten calendar days to request a hearing before the board of appeals under Section 15.04.170.