City Building Permits
Chinook, MT - 2026 Building Permit Guide
How to apply for a building permit in Chinook, Montana. Permit authority, application steps, fees, and inspection requirements.
Montana Blaine County Updated March 2026
Permit Authority
Permits required within city limits of Chinook; Chinook is the county seat of Blaine County
- Department
- City of Chinook Planning and Zoning / Building Department
- Address
- 300 Ohio Street North, Chinook, MT 59523
- Phone
- (406) 357-3160
- Website
- https://cityofchinook.com/
Application Process
- Contact Chinook City Hall to determine permit requirements and obtain application forms
- Prepare complete building permit application with project details
- Prepare architectural plans, site plans, and construction specifications
- Verify compliance with local zoning requirements
- Submit application, plans, and fees to City of Chinook
- City reviews plans for compliance with adopted building code and local ordinances
- City issues permit upon approval
- Work may commence after permit issuance
Typical processing time: Approximately 2-3 weeks for plan review if plans are complete
General Requirements
New construction, structural alterations/additions, major repairs, electrical/plumbing work, demolition, change of occupancy or use
Required Documents
- Completed application form
- Architectural/engineering plans
- Site plan
- Cost estimate
- Property description
- Owner and contractor information
- Proof of property ownership
- Permit validity
- Typically one year from issuance; verify with city
- Building code
- 2021 International Building Code (IBC 2021) and 2021 International Residential Code (IRC 2021)
- Owner-builder
- Owner-builders may construct subject to permit requirements and code compliance
- Contractor requirements
- Montana requires construction contractors to register; registration fee $70 for contractors with employees, $125 for independent contractors
Fees
- Minimum permit fee
- Variable; typically 1-2% of project valuation per Montana state standards
- Permit fee formula
- Valuation-based percentage formula (exact percentage determined by city fee schedule)
Work That Does NOT Require a Permit
- Farm and ranch buildings used for agricultural purposes
- Private garages and storage buildings for personal, non-commercial use
- Mining structures on mining property
- Residential buildings with fewer than five dwelling units (except transient occupancy)
Inspections
How to Schedule
- ()
Typical inspection sequence: Typical inspection sequence: Foundation/footing, framing, electrical/plumbing rough-in, final completion inspection
Additional Resources
- Building code: 2021 International Building Code (IBC 2021) and 2021 International Residential Code (IRC 2021)
- City of Chinook
- License lookup guide: Montana Contractor License Requirements
- Contract template: Montana Homeowner-Contractor Agreement
- Montana hub: Montana Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Chinook Planning and Zoning / Building Department before applying.
Frequently Asked Questions
Chinook Building Permit FAQ
- Do I need a building permit in Chinook, MT?
- New construction, structural alterations/additions, major repairs, electrical/plumbing work, demolition, change of occupancy or use
- How much does a building permit cost in Chinook, MT?
- The minimum permit fee is Variable; typically 1-2% of project valuation per Montana state standards. Fees are calculated as: Valuation-based percentage formula (exact percentage determined by city fee schedule).
- How do I apply for a building permit in Chinook, MT?
- 1. Contact Chinook City Hall to determine permit requirements and obtain application forms 2. Prepare complete building permit application with project details 3. Prepare architectural plans, site plans, and construction specifications 4. Verify compliance with local zoning requirements 5. Submit application, plans, and fees to City of Chinook 6. City reviews plans for compliance with adopted building code and local ordinances 7. City issues permit upon approval 8. Work may commence after permit issuance
- How long does it take to get a building permit in Chinook, MT?
- Typical processing time is Approximately 2-3 weeks for plan review if plans are complete.
- What work is exempt from building permits in Chinook, MT?
- The following work is generally exempt: Farm and ranch buildings used for agricultural purposes; Private garages and storage buildings for personal, non-commercial use; Mining structures on mining property; Residential buildings with fewer than five dwelling units (except transient occupancy).
- How do I schedule a building inspection in Chinook, MT?
- Inspections can be scheduled via: .
Need help with your project?
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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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