Unincorporated Twin Falls County building inspections
VerifiedInspection sequence, scheduling, and re-inspection fees for building permits in Unincorporated Twin Falls County, Idaho.
Verified 2026-07-08 · Source
How to schedule
Inspections are requested through the building department below.
- Address
- 630 Addison Avenue West, Suite 1100, Twin Falls, ID 83301
- Phone
- 208-734-9490
- Office hours
- Mon–Fri 8:00 AM – 5:00 PM (Building Department closed for lunch 12:30 PM – 1:30 PM)
- Website
- Official site
Published scheduling rules
- Inspection requests can be made 24/7 by phone; those received by 9:00 AM are generally completed the same day. (Residential Building Permit (New Construction / Addition))
- Mechanical inspection requests go to a dedicated line: 208-735-4432 (separate from the general Building Inspection line, 208-735-4429). (Mechanical / HVAC Permit)
- The mechanical permit's final inspection must be signed off before the associated building permit's final inspection can be requested. (Mechanical / HVAC Permit)
Inspection sequence
Applies to: Commercial Building Permit (New Construction / Tenant Improvement)
- 1
Footing / Foundation
Request by phone 24/7 at 208-734-9490 ext. 1 — requests received by 9:00 AM generally completed same day
- 2
Framing / Structural
Requires plumbing, electrical, gas, mechanical, fireplace, and firewall/sprinkler rough-in inspections signed off by the State of Idaho first
- 3
Final
Requires all trade final inspections signed off by the State of Idaho first; Certificate of Occupancy issued after all required inspections pass
Applies to: Residential Building Permit (New Construction / Addition)
- 1
Footing / Foundation
Setback verification requires property pins located and property lines clearly marked; request by phone 24/7 at 208-734-9490 ext. 1 — requests received by 9:00 AM are generally completed same day, after 9:00 AM scheduled for next workday
- 2
Framing
Requires all plumbing, electrical, gas, and mechanical rough-in inspections to be completed and signed off on the construction card by the State of Idaho (DOPL/Division of Building Safety) first
- 3
Final
Requires all plumbing, electrical, gas, mechanical, fireplace, and firewall/sprinkler final inspections signed off by the State of Idaho first. Certificate of Occupancy/Occupancy Approval issued only after all required inspections pass.
Applies to: Mechanical / HVAC Permit
- 1
Rough-In / Gas Piping Pressure Test
Call the Mechanical Inspection Request Line at 208-735-4432. Have permit number, property address, contact info, and inspection type ready. Requests called in after 7:00 AM scheduled for next working day.
- 2
Final
Equipment operational, venting and combustion air verified. Must be signed off before the associated building permit's final inspection can proceed.
Applies to: Personal Use Energy Project Permit (Rooftop/Ground-Mount Solar)
- 1
Rough / Structural (if applicable)
Mounting/racking structural attachment verified before covering, per the paired building permit
- 2
Final
Installation complete per approved siting and building permits; electrical interconnection final inspection is separately performed by the State of Idaho (Division of Building Safety)
Final inspection only: Electric Vehicle (EV) Charging Station / EVSE Permit
Sources & verification
Verified against official sources. Last reviewed 2026-07-08.
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 Twin Falls County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
Unincorporated Twin Falls County building permits
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