County Building Permits
Cassia County, ID - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Cassia County, Idaho. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
All properties in unincorporated Cassia County areas not within city limits.
- Department
- Cassia County Zoning and Building Department
- Address
- 1459 Overland Ave., Room 210, Burley, Idaho 83318
- Phone
- 208-878-7302
- bldgdept@cassia.gov
Online Permit Portal
Platform: In-person/mail submission • Account required: No • Submission: In-person only
Additional resources:
Application Process
- Submit plans and blueprints to the Cassia County Building and Zoning Department.
- Pay non-refundable plan review fee with application (fee is applied to total permit fee).
- County Building Official reviews plans for compliance with adopted codes.
- Obtain approval from County Building Official before construction commences.
- Keep approved plans on-site during all construction activities.
- Schedule required inspections at appropriate construction phases.
Typical processing time: Varies by project complexity; contact county for specific timelines.
General Requirements
A building permit is required for construction, erection, relocation, or remodeling of buildings covered under the International Building Code as adopted by Cassia County.
Required Documents
- Completed building permit application
- Plans and blueprints
- Property owner information
- Contractor information (if applicable)
- Permit validity
- Not specified; contact county for details.
- Building code
- International Building Code (IBC) with Idaho amendments; Idaho Residential Code (2020 Edition, based on IRC 2018); Idaho Energy Conservation Code (2020); International Fire Code (2018)
- Owner-builder
- Owner-builders may perform work on their own property; contractor registration may apply for projects valued at $2,000 or more.
- Contractor requirements
- Contractors performing work valued at $2,000 or more must register with Idaho Contractors Board and provide proof of workers compensation insurance and general liability coverage ($300,000 minimum).
Fees
- Payment note
- Contact county for current fee schedule and payment options.
Work That Does NOT Require a Permit
Contact the Cassia County Zoning and Building Department to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- 208-878-7302 (phone)
- County Building Department, 1459 Overland Ave., Room 210 (in-person)
- Inspection hours
- 8:30 a.m. – 5:00 p.m., Monday – Friday
Additional Resources
- Building code: International Building Code (IBC) with Idaho amendments; Idaho Residential Code (2020 Edition, based on IRC 2018); Idaho Energy Conservation Code (2020); International Fire Code (2018)
- Verify contractor license: Idaho Division of Occupational and Professional Licenses
- Idaho Division of Building Safety
- Idaho Contractors Board
- South Central Public Health District (Septic)
- 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 Cassia County Zoning and Building Department before applying.
Frequently Asked Questions
Cassia County Building Permit FAQ
- Do I need a building permit in unincorporated Cassia County, ID?
- A building permit is required for construction, erection, relocation, or remodeling of buildings covered under the International Building Code as adopted by Cassia County.
- How do I apply for a building permit in unincorporated Cassia County, ID?
- 1. Submit plans and blueprints to the Cassia County Building and Zoning Department. 2. Pay non-refundable plan review fee with application (fee is applied to total permit fee). 3. County Building Official reviews plans for compliance with adopted codes. 4. Obtain approval from County Building Official before construction commences. 5. Keep approved plans on-site during all construction activities. 6. Schedule required inspections at appropriate construction phases.
- How long does it take to get a building permit in unincorporated Cassia County, ID?
- Typical processing time is Varies by project complexity; contact county for specific timelines..
- What work is exempt from building permits in unincorporated Cassia County, ID?
- The following work is generally exempt: Accessory structures of 200 square feet or less (no permit required, but may be subject to zoning standards); Agricultural structures for farm implements, hay, grain, poultry, livestock, or horticultural products may qualify for Agricultural Siting Permits rather than standard building permits. Note: Exempt from building permit does not mean exempt from zoning and planning requirements. Verify all exemptions with the County Building Department before proceeding.
- How do I schedule a building inspection in unincorporated Cassia County, ID?
- Inspections can be scheduled via: 208-878-7302, County Building Department, 1459 Overland Ave., Room 210.
Need help with your project?
Navigating permits in Unincorporated Cassia County can be complicated.
Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.
Learn how Jaspector works