Lewistown building permits

Building department

Address

305 W Watson St, Lewistown, MT 59457 (Building Department office also cited at 308 4th Avenue South, Lewistown, MT)

Phone

(406) 535-1776

Email

building@ci.lewistown.mt.us

Office hours

Not published on the City's Building Department page as of this review. Building Inspector: Joe Ward, (406) 535-1776, building@ci.lewistown.mt.us; general Building Department line/fax (406) 535-1760 / (406) 535-3323 per city directory listings.

Website

Official site

Inspection guide

See how inspections work in Lewistown — sequence, scheduling & re-inspection fees.

Codes adopted

Montana adopts a single statewide building code by rule and, by default, enforces it directly — local governments only gain enforcement authority once the state certifies them. Under the Montana Building Codes Act (Mont. Code Ann. Title 50, Chapter 60), the Department of Labor & Industry's Building Codes Bureau adopts one state building code applicable everywhere (§ 50-60-203, codified further at Administrative Rules of Montana Title 24, Chapter 301) — currently the 2021 editions of the IBC, IRC, IMC, IFGC, IECC, IEBC, ISPSC, and UPC, with the 2020 NEC for electrical (effective statewide since 6/11/2022 per the Bureau's own Current Codes page). A city, county, or town may adopt and enforce its own building-code program under § 50-60-301, but its adopted code "may include only codes adopted by the Building Codes Bureau" — a local edition can never diverge from or be less stringent than the state's. Critically, under § 50-60-302, a local government cannot enforce ANY building code — even one it has formally adopted — until the Bureau certifies its program (requiring an approved code, a published fee schedule, an enforcement plan, and properly licensed or nationally certified inspectors); certification is granted per TRADE, not as one blanket designation. The Bureau's own "Certified City, County and Town Programs" list uses the key B=Building, P=Plumbing, E=Electrical, M=Mechanical, SP=Pool, W=Wildland-Urban-Interface — a jurisdiction can be certified for Building only while Electrical/Plumbing/Mechanical remain directly state-enforced within the same city limits (e.g., Havre, Anaconda-Deer Lodge), or certified across all trades (e.g., Billings, Missoula, Great Falls, Bozeman, Helena, Kalispell). Non-certified jurisdictions — most of Montana's unincorporated county land, since very few counties appear on the certified list — fall under direct enforcement by the state Building Codes Bureau (§ 50-60-304). Montana also exempts private homes and buildings of four or fewer dwelling units not serving transient guests from the state building-permit requirement entirely, though electrical, plumbing, and mechanical permits remain separately required regardless. Always confirm with the specific jurisdiction which trades it is certified for versus which remain directly state-enforced.

• 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 in a partially-certified jurisdiction fall under direct state administration by the DLI Building Codes Bureau. Source: Montana DLI Building Codes Bureau, Certified Local Government Program roster (bsd.dli.mt.gov/building-codes-permits).
• Lewistown is a Montana DLI-certified jurisdiction for Building (B) ONLY within city limits; certified building official on file with DLI: Holy Phelps, (406) 535-1776. Source: Montana DLI Building Codes Bureau, 'Montana Certified Local Government Program' roster, updated 04/22/2026, https://bsd.dli.mt.gov/_docs/building-codes-permits/certified-city.pdf — verified directly against the PDF (row: 'Lewistown | B | Holy Phelps | 535-1776 | City Limits').
• Per the City of Lewistown's own Public Notice 'Adoption of Building Codes' (Lewistown Public Works Administrative Order, dated August 12, 2022, issued pursuant to Lewistown Ordinance Section 4-4-1 adopted by the City Commission May 6, 2002, signed by Public Works Director Tim Majerus), the following codes are adopted and effective within the City of Lewistown as of September 1, 2022: International Building Code 2021 Edition (as amended by ARM 24.301.131), International Residential Code 2021 Edition (as amended by ARM 24.301.154), International Energy Conservation Code 2021 Edition (as amended by ARM 24.301.161), and International Existing Building Code 2021 Edition (as amended by ARM 24.301.171). Source: City of Lewistown, images/pdf/2021-Code-adoption.pdf
• The City's Commercial Building Permit Checklist (Revised 9/1/2022) additionally references the International Fire Code, 2012 Edition, as amended by ARM 23.12.601, and the City of Lewistown's Ordinance #1749 and #1750 as part of the adopted codes and ordinances applicants must show compliance with. Source: City of Lewistown, images/pdf/Commercial-Permit-Checklist-10.2022.pdf
• The City's Residential Building Permit Application Procedure (Admin approved 1/30/2015) states plans must comply with the '2012 International Residential Code (IRC), 2012 International Energy Conservation Code as amended by ARM 24.301.161' — this is a stale reference predating the City's own September 2022 code-adoption notice; the governing current codes are the 2021 editions per the City's 2022 Public Works Administrative Order above. Source: City of Lewistown, images/pdf/Respremit012015.pdf (dated 2015, superseded in substance by the 2022 adoption notice but still the only published residential application-procedure document found)
• Per the Montana DLI Building Codes Bureau's Current Codes reference (statewide effective date June 11, 2022): 2021 IBC, 2021 IRC, 2021 IEBC, 2021 IMC, 2021 IFGC, 2021 IECC, 2021 ISPSC, 2021 UPC, 2020 NEC, 2017 ICC A117.1 Accessibility — consistent with the codes the City of Lewistown's own 2022 adoption notice cites for its Building-certified scope.

Permit types & fees

• Residential Building Permit (New Construction / Additions)

  Required for new single-family home construction and additions within Lewistown city limits. Issued by the City of Lewistown under its DLI-certified local Building (B) program. Reviewed against the City's 2021 IBC/IRC/IECC/IEBC adoption (effective September 1, 2022) by an internal multi-department review (Building, Planning/Zoning, Public Works, 911 Coordinator, Fire).

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• Commercial Building Permit (New Structures, Additions, Structural Modifications)

  Required for new commercial construction, additions, and structural modifications within Lewistown city limits. Reviewed against the City's 2021 IBC/IEBC/IECC adoption and the 2012 IFC (as amended by ARM 23.12.601), plus City Ordinances #1749 and #1750, via a combined internal/external multi-department review.

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• Deck / Accessory Structure Permit

  Decks, sheds, and other detached accessory structures (garages, barns, playhouses, greenhouses) within Lewistown city limits fall under the City's standard Building Permit process for additions/structural work, subject to the City's setback requirements for accessory structures.

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• Fence Permit / Right-of-Way Encroachment Permit

  Fences on private property in Lewistown are regulated by height, material, and visibility rules under City Code 11-4-3, but do not require a general building permit. A separate Temporary Fence Encroachment Permit from the Public Works Department is required only if the fence is proposed within the public right-of-way.

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• Demolition Permit

  Demolition of structures within Lewistown city limits falls under the City's Building Department review process. No standalone demolition-specific bond, checklist, or fee schedule (comparable to Billings' $10,000 demolition bond) was found published by the City as of this review.

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• Electrical Permit (State-Issued)

  Because Lewistown is DLI-certified for Building only, electrical work anywhere within Lewistown city limits requires a Residential (or Commercial) Electrical Permit issued directly by the Montana DLI Building Codes Bureau in Helena, not by the City of Lewistown, under the 2020 NEC.

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• Plumbing Permit (State-Issued, incl. Water Heater)

  Because Lewistown is DLI-certified for Building only, plumbing work anywhere within Lewistown city limits — including water heater installation/replacement — requires a Plumbing Permit issued directly by the Montana DLI Building Codes Bureau in Helena, not by the City of Lewistown, under the 2021 Uniform Plumbing Code.

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• Mechanical / HVAC Permit (State-Issued)

  Because Lewistown is DLI-certified for Building only, mechanical/HVAC work anywhere within Lewistown city limits requires a Mechanical Permit issued directly by the Montana DLI Building Codes Bureau in Helena, not by the City of Lewistown, under the 2021 International Mechanical Code and International Fuel Gas Code.

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• Solar PV Permit (Alternative Energy)

  Required for installation of rooftop or ground-mounted solar photovoltaic systems within Lewistown city limits. Because Lewistown holds Montana DLI certification for Building (B) permits only, the electrical interconnection component is issued directly by the Montana DLI Building Codes Bureau in Helena as a Residential Electrical Permit with its 'Alternative Energy Source' add-on fee, not by the City of Lewistown. A structural/racking Building Permit is separately issued by the City for the mounting scope.

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• EV Charger / Electric Vehicle Charging Station Permit

  Montana has no dedicated EV-charger permit type or fee line, and Lewistown is DLI-certified for Building only (not Electrical), so installing a Level 2 (240V) home EV charger or EVSE within Lewistown city limits requires a State of Montana Electrical Permit issued directly by the DLI Building Codes Bureau (Helena) -- not the City of Lewistown -- billed under the same general residential wiring/circuit line items used for any new dedicated circuit or service upgrade. A separate City of Lewistown Building Permit is only needed if the installation also involves new structural work (e.g., a new carport or accessory structure).

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• Sign Permit

  Required for erection, structural alteration, or relocation of most exterior signs and awnings within Lewistown city limits, under the LEWISTOWN SIGN ORDINANCE (City Code Title 5, Chapter 21). This is a DISTINCT permit administered by the Public Works Director (as chapter "administrator"), separate from the Building Department's Building Permit -- the City's own Commercial Building Permit Checklist (Rev. 9/1/2022) cross-references this requirement directly: "Signage plan (separate permit required for signs)."

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• Fire Sprinkler / Fire Alarm System Permit (reviewed within the Commercial Building Permit -- no standalone product found)

  Lewistown does NOT publish a standalone Fire Sprinkler or Fire Alarm permit application, fee, or timeline separate from its Building Permit process. The City's own Commercial Building Permit Checklist (Rev. 9/1/2022) requires "Engineer stamped fire protection plans including calculations and manufacture cut sheets" as line item 8 of the plan set submitted WITH the Commercial Building Permit application, and the Fire Department is one of five city departments (Building, Planning/Zoning, Public Works, 911 Coordinator, Fire) in that permit's internal review. Separately, City Code Title 7, Chapter 2 ("Fire Prevention Code," Ord. 1733/1734, 2011) locally adopts the fire code and amends specific sprinkler/alarm provisions, but creates no distinct permit-issuance or fee mechanism of its own for fire suppression/alarm systems -- City Code 7-2-10 instead establishes a standing committee (City Building Official, Fire Chief, and Fire Prevention Bureau chief/fire marshal) to designate any NEW materials, processes, or occupancies needing permits BEYOND what the already-adopted codes require; no evidence was found that this committee has created a separate fire-sprinkler/alarm permit product distinct from the Commercial Building Permit.

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• Change Of Use / Change Of Occupancy Review (case-by-case, via Commercial Building Permit -- no standalone product found)

  Lewistown does not publish a standalone Change of Use, Change of Occupancy, or Certificate of Occupancy permit application, fee, or timeline. The City's Commercial Building Permit Checklist (Rev. 9/1/2022) states verbatim: "Requirements for Tenant Improvements, Change in Use or Change in Occupancy will be reviewed on a case by case basis," administered by the Building Department through the same review used for new commercial construction. Applicants should separately confirm zoning "permitted use" status using the City's Development Review Checklist before submittal, since a use not permitted outright in the existing zoning district requires a Board of Adjustment variance approved and submitted to the Building Department before any permit can issue.

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