County Building Permits

Carbon County, MT - 2026 Building Permit Guide

How to apply for a building permit in unincorporated Carbon County, Montana. Permit authority, application steps, fees, and inspection requirements.

Montana Updated March 2026

Permit Authority

Administers permits and zoning for unincorporated areas of Carbon County outside incorporated city/town boundaries.

Department
Carbon County Clerk & Recorder, Planning Office
Address
17 West 11th Street, PO Box 887, Red Lodge, MT 59068
Phone
(406) 446-1220 (Clerk & Recorder), (406) 690-1933 (Planning Office)
Website
https://carbonmt.gov/

Online Permit Portal

Open CITY WORKS connect portal

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

Application Process

  1. Contact Carbon County Planning Office at (406) 690-1933 for zoning verification on property
  2. Obtain required forms and fee schedule from Clerk & Recorder at (406) 446-1220
  3. Submit application with required documents and fees
  4. County reviews application for compliance with development regulations
  5. Approval issued or conditions noted
  6. Applicant proceeds with construction per permit conditions

Typical processing time: Varies; contact planning office for specific timeline

General Requirements

Building construction, additions, alterations, repairs, and demolition. Zoning permits required for new construction projects in unincorporated areas.

Required Documents

  • Completed application form
  • Plot plan
  • Construction plans (specific requirements vary by project type)
Building code
Carbon County Development Regulations (adopted May 2021); state building codes may apply
Owner-builder
Check with Carbon County Planning Office - state law exemptions may apply
Contractor requirements
Montana state contractor registration required if employees; see state requirements

Fees

Minimum permit fee
Contact county for current fees
Permit fee formula
Contact county office for specific formula

Work That Does NOT Require a Permit

  • Farm and ranch buildings (state exemption)
  • Mining buildings on mining property (state exemption)
  • Private garages and private storage buildings used for owner's own use (state exemption)
  • Residential buildings containing less than five dwelling units (state exemption, with exception for transient guest facilities)
  • Petroleum refineries and pulp and paper mills, excluding office and shop buildings (state exemption)

Inspections

How to Schedule

  • ()

Typical inspection sequence: Not specified; contact county for details

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Carbon County Clerk & Recorder, Planning Office before applying.

Frequently Asked Questions

Carbon County Building Permit FAQ

Do I need a building permit in unincorporated Carbon County, MT?
Building construction, additions, alterations, repairs, and demolition. Zoning permits required for new construction projects in unincorporated areas.
How much does a building permit cost in unincorporated Carbon County, MT?
The minimum permit fee is Contact county for current fees. Fees are calculated as: Contact county office for specific formula.
How do I apply for a building permit in unincorporated Carbon County, MT?
1. Contact Carbon County Planning Office at (406) 690-1933 for zoning verification on property 2. Obtain required forms and fee schedule from Clerk & Recorder at (406) 446-1220 3. Submit application with required documents and fees 4. County reviews application for compliance with development regulations 5. Approval issued or conditions noted 6. Applicant proceeds with construction per permit conditions
How long does it take to get a building permit in unincorporated Carbon County, MT?
Typical processing time is Varies; contact planning office for specific timeline.
What work is exempt from building permits in unincorporated Carbon County, MT?
The following work is generally exempt: Farm and ranch buildings (state exemption); Mining buildings on mining property (state exemption); Private garages and private storage buildings used for owner's own use (state exemption); Residential buildings containing less than five dwelling units (state exemption, with exception for transient guest facilities); Petroleum refineries and pulp and paper mills, excluding office and shop buildings (state exemption).
How do I schedule a building inspection in unincorporated Carbon County, MT?
Inspections can be scheduled via: .

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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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