Twin Falls building inspections

Verified

Inspection sequence, scheduling, and re-inspection fees for building permits in Twin Falls, Idaho.

Verified 2026-07-03 · Source

How to schedule

Inspections are requested through the building department below.

Address: 203 Main Avenue East, 2nd Floor of City Hall, Twin Falls, ID 83301 (P.O. Box 1907, Twin Falls, ID 83303-1907)
Phone: (208) 735-7238
Email: bsdpermits@tfid.org
Office hours: Building Safety Department, 2nd Floor of City Hall, 203 Main Avenue East, Twin Falls, ID 83301. Dedicated inspection request lines: Building Inspection (208) 735-7333, Plumbing Inspection (208) 735-7299, Mechanical Inspection (208) 735-7289, Electrical Inspection (208) 735-7235.
Website: Official site

Published scheduling rules

Inspections scheduled through the CityWorks portal by 7:00 AM are same-day; requests called in after midnight are scheduled for the next business day. (Residential New Home Building Permit)
To request an inspection, call the Electrical Inspection line at (208) 735-7235 or schedule via the CityWorks portal by 7:00 AM for same-day service. (Electrical Permit (MEP))
City of Twin Falls Electrical Inspection line: (208) 735-7235 (Electrical Permit (MEP))
To request an inspection, call the Plumbing Inspection line at (208) 735-7299 or schedule via the CityWorks portal by 7:00 AM for same-day service. (Plumbing Permit (MEP))
City of Twin Falls Plumbing Inspection line: (208) 735-7299 (Plumbing Permit (MEP))
To request an inspection, call the Mechanical Inspection line at (208) 735-7289 or schedule via the CityWorks portal by 7:00 AM for same-day service. (Mechanical / HVAC Permit (MEP))
City of Twin Falls Mechanical Inspection line: (208) 735-7289 (Mechanical / HVAC Permit (MEP))
Inspections requested through the CityWorks portal by 7:00 AM are scheduled same-day; phone requests made after midnight are scheduled for the next business day. Concrete/foundation inspections receive scheduling priority. (General)

Inspection sequence

Applies to: Residential New Home Building Permit

1
Foundation/Footing
Concrete inspections require property lines marked with string, minimum depth of 12 inches, and construction per City-approved plans; AM (8am-12pm) or PM (1pm-4pm) slot requested
2
Rough-In (Mechanical, Electrical, Plumbing, Fireplace, Shear, Fire Alarm/Sprinkler)
All rough-in inspections for MEP, fireplace, shear, fire alarm, and fire sprinklers must be completed and signed off, with windows/doors sealed and penetrations fire-blocked, before a framing inspection can be requested
3
Framing
Requested after all rough-in inspections are signed off on the inspection card
4
Final (Building, MEP, Firewall, Fire Sprinklers)
All final inspections for mechanical, electrical, plumbing, firewall, and fire sprinklers must be completed and signed off before requesting a building final; Certificate of Occupancy processed within 3 business days of a passed final

Applies to: Plumbing Permit (MEP)

1
Underground/Slab
Before concrete pour — verify pipe slope, materials, and cleanouts
2
Rough-In
After pipes installed, before walls closed; must be signed off before a framing inspection can be requested
3
Final
All fixtures connected, water heater verified, cleanouts exposed, no leaks; must be signed off before a building final inspection can be requested

Applies to: Residential Addition / Interior Remodel Permit

1
Footing/Foundation
Required before concrete pour for addition footings; priority scheduling, AM or PM slot
2
Rough-In
Mechanical/electrical/plumbing rough-in and framing connections to the existing structure
3
Final
All work complete per approved plans; final MEP inspections signed off before building final

Applies to: Residential Detached Accessory Building Permit (Shed, Garage, Deck, Pool)

1
Foundation/Footing
Before concrete pour; required expanded footing dimensions, reinforcement type/size/location, and hold-downs verified per plans
2
Framing
Wall bracing, truss layout, header locations verified; all rough-in inspections for any MEP work must be signed off first
3
Final / Certificate of Completion
Completed structure verified against approved plans; a Certificate of Completion is issued after all inspections pass

Applies to: Demolition Permit

1
Pre-Site-Clearance
Confirmation that utilities have been disconnected/abandoned and, where applicable, concrete removal/compaction requirements are met before final sign-off
2
Final
Site verified complete per approved demolition application and applicable ordinances

Applies to: Electric Vehicle (EV) Charger / Charging Station Permit

1
Rough-In
EV charger circuit wiring and box placement before walls are closed, per the same framework documented in this file's Electrical Permit entry.
2
Final
Charger installed and connections verified.

Applies to: Electrical Permit (MEP)

1
Rough-In
Wiring, box placement, and service connections before walls are closed; must be signed off before a framing inspection can be requested
2
Final
Devices installed, panel labeled, protections verified per 2023 NEC; must be signed off before a building final inspection can be requested

Applies to: Mechanical / HVAC Permit (MEP)

1
Rough-In
Ductwork and mechanical equipment rough-in before walls closed; must be signed off before framing inspection
2
Final
Equipment operational, clearances and combustion air verified; must be signed off before building final inspection

Applies to: Solar Photovoltaic (PV) Permit

1
Rough Electrical
Conduit runs, wire sizing, and disconnect placement before energizing
2
Final
Panel mounting, racking attachment, roof penetration sealing, electrical connections, and interconnection point verified; for Expedited permits, plans must be onsite and a short review occurs at this inspection

Final inspection only: Fence Permit, Re-Roofing Permit

Re-inspection fees

Residential New Home Building PermitRe-inspection Fee · Charged only if an inspection has failed more than once for the same issue; City of Twin Falls Master City-Wide Fee Schedule

$50.00

Residential Addition / Interior Remodel PermitRe-inspection Fee · Charged only after an inspection has failed more than once for the same issue; City of Twin Falls Master City-Wide Fee Schedule

$50.00

Sources & verification

Verified against official sources. Last reviewed 2026-07-03.

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 Twin Falls building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Twin Falls building permits

Twin Falls building permits Residential New Home Building Permit Plumbing Permit (MEP)Residential Addition / Interior Remodel Permit Residential Detached Accessory Building Permit (Shed, Garage, Deck, Pool)Demolition Permit Electric Vehicle (EV) Charger / Charging Station Permit Electrical Permit (MEP)Mechanical / HVAC Permit (MEP)Solar Photovoltaic (PV) Permit Fence Permit Re-Roofing Permit

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