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Commercial Building Permit (State-Issued) in Troy, Montana

Because Troy's DLI Building certification is scoped to RESIDENTIAL ONLY, any commercial building permit (new construction, addition, alteration, repair, change of occupancy) anywhere within Troy city limits is issued DIRECTLY by the Montana DLI Building Codes Bureau in Helena, not by the City of Troy, under the 2021 IBC as adopted statewide.

Verified 2026-07-04 · Source

When you need this permit

  • Application filed directly with the Montana Building Codes Bureau (not the City of Troy) for any commercial building project within Troy city limits
  • Reviewed against the 2021 International Building Code (IBC) and other state-adopted commercial code editions (2021 IECC, 2017 ICC A117.1 Accessibility, etc.) per ARM Title 24, Chapter 301
  • Apply by mail (Building Codes Bureau, PO Box 200517, Helena, MT 59620-0517) or online via ebiz.mt.gov
  • Applicants should also confirm with the City of Troy whether local zoning or business-license requirements apply in addition to the state building permit

Required documents

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Fee schedule

Commercial building permit feeThe Montana Building Codes Bureau publishes a valuation-based commercial fee schedule on its Building Permits page/application forms, but a jurisdiction-specific dollar figure was not re-extracted for this record; the Bureau's own site directs fee questions to (406) 841-2056 / buildingcodes@mt.gov. Left null rather than estimated; this is the identical statewide schedule that would apply to any Montana location where the state issues commercial building permits directly.
Not published — contact the department

Review timeline

Plan review
Not published — contact the department

How long did your Commercial Building Permit (State-Issued) permit actually take in Troy?

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

Inspection process

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

    Tips

    • Troy is certified for RESIDENTIAL building permits only — any commercial building project (new construction, remodel, change of occupancy) must be permitted directly through the state Building Codes Bureau in Helena, not the City.
    • State plan review timelines vary widely ('a few hours to several weeks') based on Bureau workload and project complexity/deficiencies per the DLI's own FAQ.

    Frequently asked questions

    Troy requires a commercial building permit (state-issued) for: Application filed directly with the Montana Building Codes Bureau (not the City of Troy) for any commercial building project within Troy city limits; Reviewed against the 2021 International Building Code (IBC) and other state-adopted commercial code editions (2021 IECC, 2017 ICC A117.1 Accessibility, etc.) per ARM Title 24, Chapter 301; Apply by mail (Building Codes Bureau, PO Box 200517, Helena, MT 59620-0517) or online via ebiz.mt.gov; Applicants should also confirm with the City of Troy whether local zoning or business-license requirements apply in addition to the state building permit. If your project isn't listed, confirm with City of Troy Building Department — Building Inspector David Jones; 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 Troy city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 295-4151 before starting work.

    Troy does not publish a plan-review timeline for this permit. Contact City of Troy Building Department — Building Inspector David Jones; 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 Troy city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 295-4151 for current turnaround.

    You'll need: Application for Commercial Building Permit. See the required-documents checklist on this page for details on each.

    Apply through City of Troy Building Department — Building Inspector David Jones; 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 Troy city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at 301 E. Kootenai Avenue, Troy, MT 59935. Phone: (406) 295-4151, email: citytroy@troymt.net. Office hours: City Hall, 301 E. Kootenai Ave., Troy, MT 59935; Monday-Friday, 8:00 am to 5:00 pm (closed weekends/holidays); general line (406) 295-4151, email citytroy@troymt.net. Building Inspector David Jones direct line (406) 295-9851, email building.inspector@troymt.net.. Official information: https://cityoftroymontana.com/troy-city-council/city-hall/.

    Troy, 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).; Troy is a Montana DLI-certified jurisdiction for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP), within city limits; certified official on file with DLI: David Jones, (406) 295-9851. Verified directly against the DLI Building Codes Bureau's 'Montana Certified Local Government Program' roster PDF (fetched via browser-header curl and read directly with pdftotext, not taken on secondhand summary): 'Troy | B (residential only), SP | David Jones | 295-9851 | City Limits'. This means COMMERCIAL building permits within Troy 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 Troy's own 'Building Permit Requirements' packet (dated February 7, 2023, filename Building Permit Application 2022.docx/pdf) references the '2009 IBC-IRC' on its Inspection Record card ('REMEMBER 2009 IBC-IRC required the permit holder to notify the building official when work is ready for inspection') — the City's packet has not been refreshed to reference the current 2021-edition code, 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 — directly parallel to the same inconsistency found in Libby's packet.; 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; Troy's own Building Permit Requirements packet does not separately name IECC, IEBC, or ISPSC edition years the way Libby's City page does — the City's packet references only the general 'City, State, and National regulations' framing and the 2009 IBC-IRC inspection-card citation noted above. No additional code-edition citations were found on the City's own materials beyond what is reported here; omitted rather than inferred.. Local amendments apply — see the Troy overview page for the full list.

    The Montana Department of Labor & Industry Building Codes Bureau issues commercial building permits for Troy — the City's own DLI certification covers residential building permits only, plus swimming pool permits. Apply by mail to PO Box 200517, Helena, MT 59620-0517, or online at ebiz.mt.gov.

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