This is PermitBase’s published record for Unincorporated Bonneville County as of 2026-07-07. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.

Unincorporated Bonneville County building permits

Unincorporated Bonneville County, Idaho — as published 2026-07-07.

Reviewed 2026-07-08 · Source

Codes adopted

2018 International Building Code (IBC), including ADA/Federal Fair Housing Act accessibility equivalency rules promulgated by the State Building Code Board — adopted via Bonneville County Code § 150.01(A)(1)2018 International Residential Code (IRC), Parts I-VI and IX — § 150.01(A)(2)2018 International Energy Conservation Code (IECC) — § 150.01(A)(3)2018 International Fuel Gas Code (IFGC) — § 150.01(A)(4)2018 International Mechanical Code (IMC) — § 150.01(A)(5)2018 International Fire Code (IFC), including State Fire Marshal amendments and Appendices B, C, D, E, and F — § 150.01(A)(6)2018 International Existing Building Code (IEBC) — § 150.01(A)(7)2018 International Swimming Pool and Spa Code (ISPSC) — § 150.01(A)(8)2023 National Electrical Code (NEC) — § 150.01(A)(9)2017 Idaho State Plumbing Code — § 150.01(A)(10)

Permit types & fees

Residential Building Permit (New Construction / Addition)

Required for new single-family dwellings, additions, and structural alterations in unincorporated Bonneville County, governed by the 2018 IRC/IBC and related codes adopted under Bonneville County Code § 150.01. The Planning, Zoning, and Building Department (Planning and Zoning Director Naysha Foster) administers plan review and inspections. As of January 20, 2026, the county also administers electrical and plumbing permits/inspections for the same project in-house rather than routing them to the state. Applications and inspection scheduling are submitted through the county's online CityWorks PublicAccess permitting portal.

Reviewed 2026-07-08 · Source

Requirements

Building permit required for new residential construction, additions, and structural alterations in unincorporated Bonneville County
Submit application through the county's online CityWorks PublicAccess permitting portal
Construction must comply with the 2018 IBC, 2018 IRC (Parts I-VI and IX), 2018 IECC, 2018 IFGC, 2018 IMC, 2018 IEBC (for alterations to existing buildings), 2023 NEC, and 2017 Idaho State Plumbing Code as adopted under Bonneville County Code § 150.01
Electrical and plumbing scopes of work on the same project are now permitted and inspected directly by Bonneville County (as of 1-20-2026) rather than by the State of Idaho
Agricultural buildings are exempt from the building code itself but must still meet zoning placement/setback rules and the IBC § 202 agricultural-building definition plus County Assessor confirmation of agricultural-use land under Idaho Code § 63-604 to qualify for the exemption
Work commenced before permit issuance is subject to double permit fees

Required documents

RequiredCityWorks PublicAccess Online Building Permit ApplicationBonneville County's online permitting portal for submitting building permit applications and scheduling inspections; available at app06.cityworksonline.com/CLIENT_BonnevilleCoID-Public/login, linked from the county's Planning and Zoning and Building Inspection pages

Fee schedule

Fee type	Amount	Notes

Sources & verification

Key facts verified against official sources. Last reviewed 2026-07-08.

Bonneville County Planning, Zoning, and Building Department — official building department

Codes & ordinances

Department & other records

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Bonneville County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Later version (2026-07-20) →View current record →All versions →