County Building Permits
Jerome County, ID - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Jerome County, Idaho. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
All properties in unincorporated Jerome County areas. Serves cities through intergovernmental agreements.
- Department
- Jerome County Building Department
- Address
- 300 North Lincoln Ave, Jerome, ID 83338
- Phone
- (208) 324-9262
Online Permit Portal
Platform: • Account required: No • Submission: In-person only
Additional resources:
Application Process
- Complete Pre-submission Information Request with Planning & Zoning to confirm zoning compliance (recommended).
- Prepare building permit application and required plans (floor plans, foundation, structural, framing, MEP, site plan).
- Submit application in-person to Jerome County Building Department at 300 North Lincoln Ave.
- Building Department conducts plan review and completeness check.
- Applicant responds to review comments and submits revised plans if required.
- Building permit is issued upon approval.
- Schedule inspections through the Building Department as work progresses.
- Obtain final inspection and permit sign-off upon project completion.
Typical processing time: 5-10 business days for residential; 10-30 business days for commercial projects.
General Requirements
Building permits are required for new structures, additions, alterations, attached decks or porches, elevated structures (over 30 inches), and structures exceeding 200 square feet.
Required Documents
- Completed building permit application form
- Floor plans
- Foundation plans
- Structural plans
- Framing plans
- Mechanical, electrical, and plumbing (MEP) plans
- Site plan/map
- Fire Department letter (if project exceeds 150 feet from main road)
- Proof of access road meeting Fire Department standards
- Permit validity
- Permit valid for 180 days from issuance. Work must commence within this period; if suspended or abandoned for 180 days, permit becomes invalid.
- Building code
- 2018 International Residential Code (IRC) with Idaho amendments for residential; International Building Code (IBC) with Idaho amendments for commercial.
- Owner-builder
- Owner-builders may apply directly; verify current requirements with Building Department.
- Contractor requirements
- Contractors must comply with Idaho Contractor Registration Act if project value exceeds $2,000 (materials + labor). Licensed electricians and plumbers required for respective trades.
Fees
- Penalty (no permit)
- Double permit fee if construction begins without permit.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Jerome County Building Department to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- (208) 324-9262 (phone)
- 300 North Lincoln Ave, Jerome, ID 83338 (in-person)
- Inspection hours
- Monday–Friday, 8:30 a.m.–5:00 p.m.
Typical inspection sequence: Required inspections: foundation, framing, mechanical systems, electrical systems, plumbing systems, insulation, and final inspection.
Additional Resources
- Building code: 2018 International Residential Code (IRC) with Idaho amendments for residential; International Building Code (IBC) with Idaho amendments for commercial.
- Verify contractor license: Idaho DOPL Contractor Registration
- Zoning information: View zoning info
- Idaho Division of Building Safety (DOPL)
- South Central Public Health District (PHD5) - Septic Permits
- Idaho DEQ Stormwater Permits (IPDES)
- License lookup guide: Idaho Contractor License Requirements
- Contract template: Idaho Homeowner-Contractor Agreement
- Idaho hub: Idaho Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Jerome County Building Department before applying.
Frequently Asked Questions
Jerome County Building Permit FAQ
- Do I need a building permit in unincorporated Jerome County, ID?
- Building permits are required for new structures, additions, alterations, attached decks or porches, elevated structures (over 30 inches), and structures exceeding 200 square feet.
- How do I apply for a building permit in unincorporated Jerome County, ID?
- 1. Complete Pre-submission Information Request with Planning & Zoning to confirm zoning compliance (recommended). 2. Prepare building permit application and required plans (floor plans, foundation, structural, framing, MEP, site plan). 3. Submit application in-person to Jerome County Building Department at 300 North Lincoln Ave. 4. Building Department conducts plan review and completeness check. 5. Applicant responds to review comments and submits revised plans if required. 6. Building permit is issued upon approval. 7. Schedule inspections through the Building Department as work progresses. 8. Obtain final inspection and permit sign-off upon project completion.
- How long does it take to get a building permit in unincorporated Jerome County, ID?
- Typical processing time is 5-10 business days for residential; 10-30 business days for commercial projects..
- What work is exempt from building permits in unincorporated Jerome County, ID?
- The following work is generally exempt: Minor repairs; Detached accessory structures 200 square feet or less (if not attached); Fences under certain height requirements; Sheds under 120 square feet; Agricultural buildings (require Zoning Permit and AG Siting Permit only). Note: Contact Jerome County Building Department to confirm whether specific projects qualify for exemptions. Zoning compliance required for all work.
- How do I schedule a building inspection in unincorporated Jerome County, ID?
- Inspections can be scheduled via: (208) 324-9262, 300 North Lincoln Ave, Jerome, ID 83338.
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