City Building Permits

Mackay, ID - 2026 Building Permit Guide

How to apply for a building permit in Mackay, Idaho. Permit authority, application steps, fees, and inspection requirements.

Idaho Custer County Updated March 2026

Permit Authority

All properties within the incorporated City of Mackay (population ~439; located in Lost River Valley).

Department
City of Mackay — City Hall
Address
203 Main Street, Mackay, ID 83251
Phone
208-588-2386
Website
https://mackayidaho-city.com

Online Permit Portal

Open City of Mackay — City Forms and Documents

Platform: • Account required: No • Submission: In-person only

Application Process

  1. Contact Mackay City Hall (203 Main Street, Mackay, ID 83251 or 208-588-2386).
  2. Obtain building permit application form and any required guides.
  3. Submit completed application with site plan, building plans (if applicable), and proof of ownership.
  4. City reviews application for zoning compliance and code compliance.
  5. Applicant receives approval notice or correction notice.
  6. Pay permit fees upon approval.
  7. Permit issued; construction may begin.
  8. Inspections conducted during and after construction.

Typical processing time: 5-10 business days

Source: City of Mackay — City Hall

General Requirements

Building permit required for residential, commercial, and industrial construction within city limits. City of Mackay issues building permits governed by city code and local ordinances.

Required Documents

  • Building permit application form
  • Site plan or sketch showing proposed structure and setbacks
  • Building plans (if substantial structure)
  • Proof of property ownership
  • Zoning compliance certification (if required)
Building code
2018 International Building Code (IBC), 2018 International Residential Code (IRC) with Idaho state amendments and City of Mackay local code.
Contractor requirements
Contractor registration required for projects $2,000 or more (labor, materials, all other items). Registration number must be presented before permit issuance per Idaho Code § 54-52.

Fees

Payment note
Contact city for current building permit fee schedule. Septic permits: $100-$300 (Eastern Idaho Public Health).

Work That Does NOT Require a Permit

Contact the City of Mackay — City Hall to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

Inspection hours
Weekdays during business hours

Typical inspection sequence: Inspections conducted during and after construction phases as required.

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Mackay — City Hall before applying.

Frequently Asked Questions

Mackay Building Permit FAQ

Do I need a building permit in Mackay, ID?
Building permit required for residential, commercial, and industrial construction within city limits. City of Mackay issues building permits governed by city code and local ordinances.
How do I apply for a building permit in Mackay, ID?
1. Contact Mackay City Hall (203 Main Street, Mackay, ID 83251 or 208-588-2386). 2. Obtain building permit application form and any required guides. 3. Submit completed application with site plan, building plans (if applicable), and proof of ownership. 4. City reviews application for zoning compliance and code compliance. 5. Applicant receives approval notice or correction notice. 6. Pay permit fees upon approval. 7. Permit issued; construction may begin. 8. Inspections conducted during and after construction.
How long does it take to get a building permit in Mackay, ID?
Typical processing time is 5-10 business days.
What work is exempt from building permits in Mackay, ID?
The following work is generally exempt: Minor repairs and maintenance. Note: Exemption from building permit does not mean exemption from zoning and planning requirements. Contact city for confirmation of specific exemptions.

Need help with your project?

Navigating permits in Mackay 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.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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