Building Safety in Bannock County, ID (2026)
5 rules for unincorporated Bannock County, Idaho.
Verified from official government sources
Fire Sprinkler Requirements
In unincorporated Bannock County, the 2018 International Residential Code section requiring automatic fire sprinklers in new one- and two-family homes was deleted outright by county ordinance. Townhouses still fall under the sprinkler rule unless a qualifying fire-rated wall separates units or the work is an addition/alteration to an existing unsprinklered townhouse. Planning and Development Services enforces the amended building code.
Bannock County: No Home Fire Sprinkler Mandate
Few RestrictionsBannock County Code § 15.04.200
Delete the exception under Section R313.1 Townhouse automatic fire sprinkler systems, and replace with the following: Exception: Automatic residential fire sprinkler systems shall not be required in townhouses where either two (2) one (1)-hour fire-resistance-rated walls or a common two (2)-hour fire-resistance rated wall, as specified in item number 2 of Section R302.2.2 is installed between d...
Childcare Center Rules
Bannock County classifies small day care and custodial care operations under its own 2018 International Building Code amendments in Section 15.04.190. A dwelling-unit day care serving twelve or fewer children, or a facility with five or fewer persons receiving custodial, medical or personal care, is treated as a Group R-3 occupancy or allowed to follow the International Residential Code instead of full commercial building standards.
Bannock County Childcare Occupancy Building Rules
Some RestrictionsBannock County Code § 15.04.190 (IBC §§ 305.2.3, 308.2.4, 310.4.1)
305.2.3 Twelve (12) or fewer children in a dwelling unit. A facility such as the above within a dwelling unit and having twelve (12) or fewer children receiving such day care shall be classified as a Group R-3 occupancy or shall comply with the International Residential Code. ... 308.2.4 Five (5) or fewer persons receiving custodial care. A facility with five (5) or fewer persons receiving cust...
Carbon Monoxide Detectors
Unincorporated Bannock County ties carbon monoxide alarm retrofits to the same 2018 IRC alteration trigger as smoke alarms, but Section R315.2.2 carries its own, narrower exception. Exterior work such as roofing, siding, window, door, porch, deck or electrical permits is exempt, and so is installing, altering or repairing noncombustion plumbing or mechanical systems. Any other permitted alteration requires bringing CO alarms up to current code.
Bannock County Carbon Monoxide Alarm Retrofit Rules
Some RestrictionsBannock County Code § 15.04.200
Delete the exceptions under Section R315.2.2 Alterations, repairs and additions, and replace with the following: Exceptions: 1. Work involving the exterior surfaces of dwellings, such as, but not limited to, replacement of roofing or siding, or the addition or replacement of windows or doors, or the addition of a porch or deck or electrical permits, are exempt from the requirements of this sect...
Building Permits
Any erection, construction, enlargement, alteration, repair, moving, conversion or demolition of a building in unincorporated Bannock County falls under the Bannock County Building Code, administered by the building official under Section 15.04.110. Permits are required for essentially everything except a short exempt list the county wrote into its 2018 residential code amendments, such as small prefabricated pools and flagpoles, with fees set from a valuation-based schedule.
Bannock County Building Permit Requirements
Some RestrictionsBannock County Code §§ 15.04.040, 15.04.110, 15.04.140, 15.04.200
The Bannock County Building Code shall include the following uniform or model codes, standards, appendices, pamphlets and supplements for the purpose of regulating the erection, construction, enlargement, alteration, repair, moving, removal, conversion, demolition, occupancy, use, height, area of buildings and structures in all unincorporated areas of the county. ... The building official, or h...
Building Inspections
Building inspections in unincorporated Bannock County run through the building official's staff, defined in Section 15.04.130 as the person appointed to inspect buildings under construction, approve construction, and authorize occupancy. The building official can require sign-off from other agencies before final approval or a certificate of occupancy, and bonded work must pass every required inspection before the bond is released.
Bannock County Building Inspection Process
Some RestrictionsBannock County Code §§ 15.04.120, 15.04.130, 15.04.150(B)
To ensure effective coordination with other departments, agencies and organizations with jurisdiction, the building official may request comment and/or require approval from affected agencies prior to issuance of permits, final approval and/or issuance of a certificate of occupancy. ... "Building inspector" means an individual appointed to inspect buildings under construction, approve construct...
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