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Building Permits in Twin Falls County, Idaho

County jurisdiction

Local details being verified — statewide baseline shown

Adopted Construction Codes

These are the state-level code editions for Idaho. They apply in Twin Falls Countyunless a verified local adoption or amendment is noted — in local-adoption states, confirm the city or county's own code editions with the building department.

Code	Edition	Adoption
IBC — International Building Code	2018	Idaho Code 39-4109; IDAPA 24.39.30 · source ↗
IEBC — International Existing Building Code	2018	IDAPA 24.39.30 · source ↗
IECC — International Energy Conservation Code	2018	IDAPA 24.39.30 · source ↗
IFC —	2018	Idaho Code 41-253 (State Fire Marshal) · source ↗
IFGC — International Fuel Gas Code	2018	IDAPA 24.39.50 · source ↗
IMC — International Mechanical Code	2018	IDAPA 24.39.50 · source ↗
IRC — International Residential Code	2018	Idaho Code 39-4109 (Parts I-III and IX, 2020 amendments) · source ↗
NEC — National Electrical Code (NFPA 70)	2023	Idaho Code tit. 54 ch. 10; IDAPA 24.39.10 · source ↗
UPC —	2017	Idaho State Plumbing Code, IDAPA 24.39.20 · source ↗

Permit Requirements

Permit-type details for Twin Falls County (fees, required documents, inspection sequence) are being verified with the local building department. In the meantime, contact the county building department directly, or ask the BuildSpec Copilot about statewide requirements.

Building Department

Building department website ↗

Phone: (208) 933-9279

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Related on BuildSpec

Idaho adopted codes →Idaho DOT specifications →Code calculators →