Skip to main content
PermitBase

Change of Use / Certificate of Occupancy in Libby, Montana

Libby does not have a separate standalone 'change of use' permit product or application. The City's own Building Permit Requirements packet states plainly that 'a permit IS required any time the use of a building is to be changed,' processed through the identical Libby Building Permit Application used for construction, addition, alteration, repair, move, and demolition projects -- there is no distinct Change-of-Use checkbox on the form's Type of Project list. A Certificate of Occupancy (CO) must be issued before a building can be used, per item 6 of the same application. Because Libby's own DLI Building certification is residential-only, a change of use affecting a COMMERCIAL building is instead processed directly through the Montana DLI Building Codes Bureau's Commercial Building Permit, reviewed against 2021 IBC/IEBC change-of-occupancy provisions -- the same routing already documented for all other commercial building work in Libby.

Verified 2026-07-22 · Source

When you need this permit

  • Complete the same Libby Building Permit Application used for other work, describing the nature of the use change; no distinct Change-of-Use checkbox exists among the form's Type of Project options (Commercial/Residential/New/Addition/Alteration/Repair/Move/Demolition), so applicants typically select the closest applicable category (e.g., Alteration) and describe the use change in the project narrative
  • For a RESIDENTIAL-certified-scope change of use, the City of Libby Building Inspector reviews the application against the 2021 International Existing Building Code (IEBC), which the City's own Building Inspector page lists among its referenced codes
  • For a COMMERCIAL building's change of use, the application routes directly to the Montana DLI Building Codes Bureau (not the City), consistent with Libby's residential-only Building certification, and is reviewed under the 2021 IBC/IEBC
  • A Certificate of Occupancy must be issued before the building can be used under its new use/occupancy classification, per item 6 of the City's own Building Permit Application form
  • Since January 23, 2012, any new City-issued building permit -- including one triggered by a change of use -- must also be reviewed and signed off by the Lincoln County Floodplain Manager

Required documents

Check off what you have — your progress is saved on this device.

Not ready yet — 0 of 1 required documents checked.

This checker covers one permit. A full project usually triggers several — our paid checklist will assemble all of them, from $29 →

Fee schedule

Change-of-use-specific feeNo separate change-of-use or certificate-of-occupancy fee line is published by the City of Libby distinct from its general valuation-based Appendix L building permit fee table; a change of use is billed as an ordinary building permit application under that same schedule (see residential-building-permit and commercial-building-permit-state in this file for the applicable fee tables). Left null rather than invented.
Not published — contact the department

Review timeline

Plan review
Not published — contact the department

How long did your Change of Use / Certificate of Occupancy permit actually take in Libby?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Final / Certificate of Occupancy Inspection

    Building verified as meeting applicable code requirements for its new use/occupancy classification before a Certificate of Occupancy is issued and the building may be used, consistent with the City's general Final Inspection practice and item 6 of the Building Permit Application form.

See the full Libby inspection guide — scheduling & re-inspection fees →

Tips

  • Libby has no standalone 'change of use permit' or 'certificate of occupancy permit' product -- it is the same Libby Building Permit Application used for construction, addition, alteration, repair, move, and demolition, per the City's own Building Permit Requirements packet: 'A permit IS required any time the use of a building is to be changed.'
  • Because Libby's DLI Building certification does not extend to commercial buildings, a change of use affecting a commercial structure routes directly to the Montana DLI Building Codes Bureau in Helena, the same as any other commercial building permit in Libby.
  • Budget the same as a general building permit -- no distinct change-of-use fee line exists in the City's published Appendix L fee table.

Frequently asked questions

Libby requires a change of use / certificate of occupancy permit for: Complete the same Libby Building Permit Application used for other work, describing the nature of the use change; no distinct Change-of-Use checkbox exists among the form's Type of Project options (Commercial/Residential/New/Addition/Alteration/Repair/Move/Demolition), so applicants typically select the closest applicable category (e.g., Alteration) and describe the use change in the project narrative; For a RESIDENTIAL-certified-scope change of use, the City of Libby Building Inspector reviews the application against the 2021 International Existing Building Code (IEBC), which the City's own Building Inspector page lists among its referenced codes; For a COMMERCIAL building's change of use, the application routes directly to the Montana DLI Building Codes Bureau (not the City), consistent with Libby's residential-only Building certification, and is reviewed under the 2021 IBC/IEBC; A Certificate of Occupancy must be issued before the building can be used under its new use/occupancy classification, per item 6 of the City's own Building Permit Application form; Since January 23, 2012, any new City-issued building permit -- including one triggered by a change of use -- must also be reviewed and signed off by the Lincoln County Floodplain Manager. If your project isn't listed, confirm with City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 293-2731 before starting work.

Libby does not publish a plan-review timeline for this permit. Contact City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 293-2731 for current turnaround.

You'll need: Libby Building Permit Application (or state Application for Commercial Building Permit, if the affected building is commercial). See the required-documents checklist on this page for details on each.

Libby requires 1 inspection(s) for a change of use / certificate of occupancy permit, in order: Final / Certificate of Occupancy Inspection. Schedule each through City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. ((406) 293-2731).

Apply through City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at 952 E. Spruce St., PO Box 1428, Libby, MT 59923. Phone: (406) 293-2731, email: building.inspector@cityoflibby.com. Office hours: City Hall, 952 E. Spruce St., Libby, MT 59923; general line (406) 293-2731, fax (406) 293-4090. Building Inspector Walter Snyder direct line (406) 291-9629, email building.inspector@cityoflibby.com.. Official information: https://cityoflibby.com/departments-services/building-inspector/.

Libby, Montana has adopted: Montana has a mandatory statewide building code administered by the Montana Department of Labor & Industry (DLI) Building Codes Bureau, amended by the Administrative Rules of Montana (ARM) Title 24, Chapter 301. Cities, counties, and towns may become 'certified' to locally administer permitting and inspection for all or part of the code; non-certified trades and non-certified project scopes in a partially-certified jurisdiction fall under direct state administration by the DLI Building Codes Bureau. Source: Montana DLI Building Codes Bureau, Certified City, County and Town Programs (bsd.dli.mt.gov/building-codes-permits).; Libby is a Montana DLI-certified jurisdiction for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP), within city limits; certified official on file with DLI: Walter Snyder, (406) 293-2731. Verified directly against the DLI Building Codes Bureau's 'Montana Certified Local Government Program' roster PDF, updated 04/22/2026 (fetched and read directly, not taken on secondhand summary): 'Libby | B (residential only), SP | Walter Snyder | 293-2731 | City Limits'. This means COMMERCIAL building permits within Libby city limits, and Electrical/Plumbing/Mechanical permits for ALL project types (residential and commercial), are issued DIRECTLY by the Montana DLI Building Codes Bureau, not the City. Source: https://bsd.dli.mt.gov/_docs/building-codes-permits/certified-city.pdf; The City of Libby's own Building Inspector Department page and Building Permit Requirements packet list the codes referenced for construction in Libby as: the 2021 International Residential Code (IRC), 2021 International Energy Conservation Code (IECC), 2021 International Existing Building Code (IEBC), and 2021 International Swimming Pool and Spa Code (ISPSC) — consistent with a small residential-and-pool-only-certified jurisdiction enforcing the state-adopted editions rather than authoring independently amended code text. Source: City of Libby Building Inspector page, https://cityoflibby.com/departments-services/building-inspector/; Per the Montana DLI Building Codes Bureau's Current Codes page (statewide effective date June 11, 2022, applicable to all certified and state-enforced jurisdictions alike): 2021 IBC, 2021 IRC, 2021 IEBC, 2021 IMC, 2021 IFGC, 2021 IECC, 2021 ISPSC, 2021 UPC, 2020 NEC, 2017 ICC A117.1 Accessibility. Source: bsd.dli.mt.gov/building-codes-permits/current-codes; The City's own downloadable Building Permit Requirements and Application packet (cityoflibby.com) still references an older permit-fee appendix table sourced from the 2006 International Residential Code (Appendix L) and an inspection-record card citing the 2009 IBC/IRC — the City's packet has not been fully refreshed to reference 2021-edition appendix/section numbers even though the statewide code in force is now the 2021 edition; this is reported as an observed inconsistency in the City's own published document, not an invented fact.. Local amendments apply — see the Libby overview page for the full list.

No. Libby processes a change of use through the same Libby Building Permit Application used for other construction work -- its own packet states a permit is required any time a building's use is changed. A Certificate of Occupancy must still be issued before the building can be used under the new use, per the application form's own item 6.

The Montana DLI Building Codes Bureau in Helena, not the City, since Libby's own DLI Building certification covers residential work only.

Other permits in Libby

Residential Building Permit (New Construction / Addition / Alteration / Repair)Commercial Building Permit (State-Issued)Swimming Pool PermitElectrical Permit (State-Issued)Plumbing Permit (State-Issued, incl. Water Heater)Mechanical / HVAC Permit (State-Issued)Deck / Accessory Structure PermitDemolition / Building Move PermitSolar PV Permit (Alternative Energy)EV Charger / Electric Vehicle Charging Station PermitSign PermitFire Sprinkler / Fire Alarm System Permit

Change of Use / Certificate of Occupancy in other cities

Anaconda-Deer Lodge, MontanaBelgrade, MontanaChoteau, MontanaCity of Deer Lodge, MontanaColstrip, MontanaColumbia Falls, MontanaConrad, MontanaCut Bank, Montana

Compare change of use / certificate of occupancy fees across Montana →

Look up this fee in a different city →

Embed this data card →

Now live

Build your Libby project checklist

Describe your project once and get every permit, document, and fee it triggers in Libby — in one checklist. Sign up and pay once to generate it, or go unlimited with Pro.

Get started →