Latah County, ID - 2026 Building Permit Guide

Permit Authority

All unincorporated properties within Latah County, including communities such as Viola, Avon, Cedar Creek, Farmington, Harvard, Helmer, Howell, Joel, and Princeton.

Department

Latah County Planning & Building Department

Address

522 South Adams Street, Moscow, ID 83843

Phone

(208) 882-8580

Email

pb@latahcountyid.gov

Website

https://latahcountyid.gov/planning_building/

Online Permit Portal

Application Process

1. Prepare two sets of plans drawn to scale and dimensioned.
2. Complete the building permit application form and have it signed by the property owner and contractor.
3. Provide site plan showing property lines, setbacks, easements, wells, and septic systems/drainfields.
4. Include architectural and foundation plans with floor framing and building elevations.
5. Submit structural engineering calculations if required by the building official.
6. Submit application in-person, by mail, or online to the Latah County Planning & Building Department.
7. County staff performs plan review (2-10 business days depending on project complexity).
8. Pay permit fees upon application or as invoiced for plan review.
9. Respond to any correction comments and submit revised documents if required.
10. Pay remaining permit fees and obtain permit issuance before starting work.
11. Post permit on-site in a visible location throughout construction.

Typical processing time: 2-5 business days for minor work (repairs, alterations); 5-10 business days for residential new construction; 2-4 weeks for commercial or complex projects.

Source: Latah County Planning & Building Department

General Requirements

A building permit is required for all construction in unincorporated Latah County. Residential accessory structures (sheds, playhouses) less than 200 square feet may be exempt if they comply with local zoning; confirm with the Building Department before proceeding.

Required Documents

• Completed building permit application form
• Two sets of plans drawn to scale and dimensioned
• Site plan showing property lines, setbacks, easements, wells, and septic systems
• Architectural and foundation plans with floor framing and building elevations
• Utility plans (electrical, plumbing, mechanical)
• Structural engineering calculations (if required by building official)
• Proof of contractor registration (for work valued at $2,000 or more)

Permit validity

Permit becomes invalid if work is not commenced within 180 days of issuance. Permit becomes void if work is suspended or abandoned for 180 consecutive days. A permit extension or renewal may be requested.

Building code

2018 International Building Code (IBC), 2018 International Residential Code (IRC), 2018 International Energy Conservation Code (IECC with Idaho amendments, effective January 1, 2021)

Owner-builder

Owner-builders must register with the Idaho Contractors Board if the project value exceeds $2,000.

Contractor requirements

All contractors performing construction work valued at $2,000 or more must register with the Idaho Contractors Board. Registration requires proof of liability insurance ($300,000 minimum). Electrical, plumbing, and HVAC contractors must hold valid state licenses issued by the Idaho Division of Occupational & Professional Licenses (DOPL).

Fees

Payment note

Contact Latah County Planning & Building Department for current fee schedules and payment methods. Fees typically follow a sliding scale based on project valuation or square footage.

Work That Does NOT Require a Permit

Contact the Latah County Planning & Building Department to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

• (208) 882-8580 (phone)
• Latah County Planning & Building Department (in-person)

Scheduling deadline

24 hours minimum notice required for inspection requests.

Inspection hours

Monday–Friday, 8:30 AM–12:00 PM and 1:00 PM–4:30 PM

Typical inspection sequence: Required inspections include: Foundation/Footing Inspection (before concrete pour), Framing Inspection (after structural framing is complete), Rough-In Inspection (for mechanical, electrical, plumbing systems before walls are closed), Insulation & Drywall Inspection (after insulation installed, before drywall closure for energy code compliance), and Final Inspection (after construction complete and all systems operational).

Additional Resources

• Building code: 2018 International Building Code (IBC), 2018 International Residential Code (IRC), 2018 International Energy Conservation Code (IECC with Idaho amendments, effective January 1, 2021)
• Verify contractor license: Idaho Contractors Board - Contractor Registration Lookup
• Zoning information: View zoning info
• Idaho Division of Building Safety (IDBS)
• Idaho Department of Environmental Quality - Stormwater Permits
• Idaho North Central District Health - Septic Systems
• Idaho Energy Code
• License lookup guide: Idaho Contractor License Requirements
• Contract template: Idaho Homeowner-Contractor Agreement
• Idaho hub: Idaho Contractor License & Permit Hub

Frequently Asked Questions

Latah County Building Permit FAQ

Do I need a building permit in unincorporated Latah County, ID?

A building permit is required for all construction in unincorporated Latah County. Residential accessory structures (sheds, playhouses) less than 200 square feet may be exempt if they comply with local zoning; confirm with the Building Department before proceeding.

How do I apply for a building permit in unincorporated Latah County, ID?

1. Prepare two sets of plans drawn to scale and dimensioned. 2. Complete the building permit application form and have it signed by the property owner and contractor. 3. Provide site plan showing property lines, setbacks, easements, wells, and septic systems/drainfields. 4. Include architectural and foundation plans with floor framing and building elevations. 5. Submit structural engineering calculations if required by the building official. 6. Submit application in-person, by mail, or online to the Latah County Planning & Building Department. 7. County staff performs plan review (2-10 business days depending on project complexity). 8. Pay permit fees upon application or as invoiced for plan review. 9. Respond to any correction comments and submit revised documents if required. 10. Pay remaining permit fees and obtain permit issuance before starting work. 11. Post permit on-site in a visible location throughout construction.

How long does it take to get a building permit in unincorporated Latah County, ID?

Typical processing time is 2-5 business days for minor work (repairs, alterations); 5-10 business days for residential new construction; 2-4 weeks for commercial or complex projects..

What work is exempt from building permits in unincorporated Latah County, ID?

The following work is generally exempt: Residential accessory structures (sheds, playhouses) less than 200 square feet, provided they comply with local zoning laws; Detached decks under 200 sq. ft., under 30 inches high, and not attached to the dwelling (verify with Building Department); Minor repairs and alterations (interior finishes, in-kind roof repairs, paint); Certain mechanical installations (wood stoves and other minor mechanical work with proper setbacks, e.g., 20 ft from septic drainfield). Note: Exemptions vary by jurisdiction and are subject to local Latah County ordinances. Verify with the Building Department before proceeding with any project assumed exempt. Exempt from building permit does not mean exempt from zoning and planning requirements.

How do I schedule a building inspection in unincorporated Latah County, ID?

Inspections can be scheduled via: (208) 882-8580, Latah County Planning & Building Department. 24 hours minimum notice required for inspection requests..