Building Permit (New Construction / Addition / Structural Alteration) in Shelby, Montana

Shelby requires a building permit (new construction / addition / structural alteration) for: Application for a building permit submitted to the City Building Official; plans reviewed for compliance with the applicable building/technical codes adopted by administrative reference under Shelby Municipal Code 10-1-1; Building plan review completed by the building official within 30 working days of submittal of a complete application (10-1-2.C); the building official may submit plans to other affected city departments for review before permit issuance (10-1-2.B); Structural changes (any work increasing or decreasing the size of a structure) require a building permit and payment of the applicable fee per the valuation-based schedule in Shelby Municipal Code 1-12-13; whether contemplated work constitutes a 'structural change' is determined by the building inspector (10-1-9.B); Non-structural 'remodeling' of a single-family dwelling (siding, reroofing, cupboard/counter/countertop replacement, interior wall repair/replacement, and window/door replacement using the original opening) requires NO permit and NO fee, provided it does not affect the structural integrity of the dwelling (10-1-9.A); Factory-built buildings approved by the Montana Building Codes Bureau are subject to local inspection and fees for zoning, utility connections, and foundations only — not full plan review (10-1-5). If your project isn't listed, confirm with City of Shelby Building Department — Building Official Keith Thaut (per the City's live Building & Zoning page, https://www.shelbymt.com/building, fetched 2026-07-16: 'Keith Thaut Building Inspector'); city-certified for Building (B) permits only. Electrical, Plumbing, and Mechanical/HVAC permits within Shelby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. NOTE: the Montana DLI Building Codes Bureau's own certified-jurisdictions roster PDF (updated 04/22/2026) spells the same position 'Ken Thaut' — a name-spelling discrepancy between two current primary sources (city website vs. state roster) that could not be independently resolved as of 2026-07-16; both are cited so nothing is silently reconciled. at (406) 434-5222 before starting work.

Fees are valuation-based per Shelby Municipal Code 1-12-13, starting at $23.50 for projects valued $1-$500 and scaling up (e.g., $69.25 for the first $2,000 plus $14.00 per additional $1,000 up to $25,000). Contact City Hall at (406) 434-5222 to confirm current amounts.

Shelby Municipal Code 10-1-2 requires plan review to be completed within thirty (30) working days of a complete application submittal, extendable at the building official's discretion if state or outside professional consultation is needed.

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

Shelby requires 2 inspection(s) for a building permit (new construction / addition / structural alteration), in order: Department Coordination Review, Construction Inspections. Schedule each through City of Shelby Building Department — Building Official Keith Thaut (per the City's live Building & Zoning page, https://www.shelbymt.com/building, fetched 2026-07-16: 'Keith Thaut Building Inspector'); city-certified for Building (B) permits only. Electrical, Plumbing, and Mechanical/HVAC permits within Shelby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. NOTE: the Montana DLI Building Codes Bureau's own certified-jurisdictions roster PDF (updated 04/22/2026) spells the same position 'Ken Thaut' — a name-spelling discrepancy between two current primary sources (city website vs. state roster) that could not be independently resolved as of 2026-07-16; both are cited so nothing is silently reconciled. ((406) 434-5222).

Apply through City of Shelby Building Department — Building Official Keith Thaut (per the City's live Building & Zoning page, https://www.shelbymt.com/building, fetched 2026-07-16: 'Keith Thaut Building Inspector'); city-certified for Building (B) permits only. Electrical, Plumbing, and Mechanical/HVAC permits within Shelby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. NOTE: the Montana DLI Building Codes Bureau's own certified-jurisdictions roster PDF (updated 04/22/2026) spells the same position 'Ken Thaut' — a name-spelling discrepancy between two current primary sources (city website vs. state roster) that could not be independently resolved as of 2026-07-16; both are cited so nothing is silently reconciled. at 112 1st Street South, Shelby, MT 59474. Phone: (406) 434-5222. Office hours: Shelby City Hall: contact (406) 434-5222 for all building inspection and ordinance enforcement matters, per the City's current Building & Zoning page (the former 'City Building Inspector' page at /city-building-inspector/ is a 404 as of 2026-07-16 — the City's site re-platformed from a custom/WordPress-style CMS to Wix, and this content now lives at /building). Building Official Keith Thaut is named on that live page; the Montana DLI Building Codes Bureau's certified-jurisdictions roster lists the same position as 'Ken Thaut' (see department name note).. Official information: https://www.shelbymt.com/building.

Shelby, 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 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).; Shelby is a Montana DLI-certified jurisdiction for Building (B) ONLY within city limits; certified building official on file with DLI: Ken Thaut, (406) 434-5222. Verified directly against the DLI Building Codes Bureau's 'Montana Certified Local Government Program' roster PDF (fetched and text-extracted directly from the primary-source PDF, updated 04/22/2026): 'Shelby | B | Ken Thaut | 434-5222 | City Limits'. Source: https://bsd.dli.mt.gov/_docs/building-codes-permits/certified-city.pdf. NOTE (2026-07-16 re-check): this DLI roster quote is preserved verbatim and re-confirmed current (re-fetched and re-extracted from the same PDF this session, still reading 'Ken Thaut'), but the City of Shelby's own live website (shelbymt.com/building, fetched the same day) spells the position 'Keith Thaut.' This is a genuine discrepancy between two current primary sources that could not be independently resolved — both spellings are recorded rather than one being silently chosen as correct.; Shelby Municipal Code Title 10 (Building Regulations), Chapter 1 (Building Codes), Section 10-1-1 (Adoption Of Model Building And Technical Codes By Administrative Action), last amended by Ordinance 803 (9-20-2010): adopts by reference, through administrative action of the building inspector as authorized by Mont. Code Ann. Section 50-60-301(1)(b), 'the current editions of the building, mechanical and related codes and all accompanying appendices, amendments and modifications adopted by the bureau of building and measurement standards, Montana department of labor and industry (or its successor), as set out in the administrative rules of Montana.' Source: City of Shelby Code of Ordinances, https://codelibrary.amlegal.com/codes/shelbymt/latest/shelby_mt/0-0-0-2417 (section 10-1-1); 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. Shelby's own municipal code (Title 10, Chapter 1) adopts the state-published editions by administrative reference rather than authoring independently amended code text, consistent with a small B-only-certified jurisdiction enforcing the state-adopted editions. Source: bsd.dli.mt.gov/building-codes-permits/current-codes. Local amendments apply — see the Shelby overview page for the full list.

The City of Shelby issues its own Building permits under a Montana DLI 'Building (B) only' certification. The Building Official is named 'Keith Thaut' on the City's live Building & Zoning page and 'Ken Thaut' on the Montana DLI's certified-jurisdictions roster — an unresolved spelling discrepancy between the two sources as of 2026-07-16. Source: Montana DLI Building Codes Bureau certified-jurisdictions roster, City of Shelby Building & Zoning page, and Shelby Municipal Code Title 10, Chapter 1.