Unincorporated Ada County building inspections

Verified

Inspection sequence, scheduling, and re-inspection fees for building permits in Unincorporated Ada County, Idaho.

Verified 2026-06-29 · Source

How to schedule

Inspections are requested through the building department below.

Address: 200 W. Front Street (Ada County Courthouse, 2nd Floor), Boise, ID 83702-7300
Phone: 208-287-7900
Email: mechanical@adacounty.id.gov
Office hours: Mon–Fri 8:00 AM – 5:00 PM
Website: Official site

Published scheduling rules

Inspection requests must be made the day before via phone (before 4:30 PM) or email (before midnight). AM/PM scheduling is accommodated when possible but not guaranteed. (Residential Building Permit (New Construction / Addition))
Final inspection must be requested within one year of permit issuance or an alert is placed on the property preventing further building permits (Swimming Pool / Spa Permit)
Inspection requests must be made the day before the inspection is needed — by phone before 4:30 PM, or by email before midnight. AM/PM scheduling is accommodated when possible but not guaranteed. (General)

Inspection sequence

Applies to: Residential Building Permit (New Construction / Addition)

1
Footing
Always required — request by 4:30 PM by phone or before midnight by email for next-day scheduling. Rebar not required unless part of an engineered design or subdivision-wide geotechnical report; footing inspection still required even without rebar.
2
Foundation (if applicable)
Not required where rebar is placed above code minimum unless required by engineer or on approved plans; inspector confirms per Building Division FAQ.
3
Framing
After framing, sheathing, and rough-in trades complete — before insulation or wall cover
4
Final
All work complete per approved plans; Certificate of Occupancy or final approval issued

Applies to: Commercial Building Permit (New Construction / Tenant Improvement)

1
Footing / Foundation
Request by 4:30 PM by phone or before midnight by email for next-day scheduling
2
Framing / Structural
After structural framing complete and before wall cover
3
Final
All work complete per approved plans; Certificate of Occupancy issued

Applies to: Mechanical / HVAC Permit

1
Gas Piping Pressure Test
Required before concealing gas piping — verify no leaks under test pressure per 2018 IFGC
2
Rough-In / Ductwork
Mechanical equipment and ductwork installed before walls closed — verify clearances and support per 2018 IMC. Request by 4:30 PM by phone or before midnight by email for next-day scheduling.
3
Final
Equipment operational, combustion air verified, venting correct per 2018 IMC/IFGC

Applies to: Swimming Pool / Spa Permit

1
Excavation / Steel / Shell
Before gunite or shotcrete application — verify excavation, rebar, and plumbing per 2018 ISPSC
2
Barrier / Fence
Pool safety barrier verified per 2018 ISPSC Chapter 3 requirements before pool is placed in service
3
Final
All work complete, pool filled, equipment operational, all barriers in place. Must be requested within one year of permit issuance.

Applies to: Grading & Drainage Permit

1
Erosion Control (pre-grading)
Erosion control measures must be in place before work begins
2
Final Grade
Drainage verified, slopes stabilized, and grading matches approved plan

Applies to: Solar Photovoltaic (PV) Permit

1
Structural/Mounting Final (County)
Racking attachment, roof penetration sealing, and structural load compliance verified by Ada County
2
Electrical Interconnection (DOPL, separate permit)
Conduit, disconnects, inverter, and interconnection point verified by a state-assigned inspector under the separate DOPL electrical permit

Final inspection only: Agricultural Structure Permit (Zoning Certificate), EV Charger / EVSE Electrical Permit

Sources & verification

Verified against official sources. Last reviewed 2026-06-29.

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

Unincorporated Ada County building permits

Unincorporated Ada County building permits Residential Building Permit (New Construction / Addition)Commercial Building Permit (New Construction / Tenant Improvement)Mechanical / HVAC Permit Swimming Pool / Spa Permit Grading & Drainage Permit Solar Photovoltaic (PV) Permit Agricultural Structure Permit (Zoning Certificate)EV Charger / EVSE Electrical Permit

Get alerts for Unincorporated Ada County

We'll email you when Unincorporated Ada County's fees, documents, or codes change — not often.

We only use your email to send permit updates. No spam, unsubscribe anytime. Privacy.