Fence and Retaining Wall Permit in Columbia Falls, Montana

Only if the wall exceeds 36 inches (3 feet) above original grade. Walls over 36 inches require a building permit and are capped at a maximum of 4 feet above pre-existing grade. Source: City of Columbia Falls Municipal Code, Title 18, Chapter 18.436.

In Columbia Falls, the published Building Permit Fee (retaining walls over 36 inches only) is: Calculated at time of submission based on project valuation (field left blank on the application form). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Columbia Falls's published plan-review target for a fence and retaining wall permit is 1–10 business days.

Depending on your project, Columbia Falls may also ask for: Building Permit Application (for retaining walls over 36 inches). See the required-documents checklist on this page for details on each.

Columbia Falls requires 1 inspection(s) for a fence and retaining wall permit, in order: Final Building Inspection (retaining walls over 36 inches only). Schedule each through City of Columbia Falls Building Department (Building, Planning & Public Works) ((406) 892-4391).

Apply through City of Columbia Falls Building Department (Building, Planning & Public Works) at 130 6th St West, Columbia Falls, MT 59912. Phone: (406) 892-4391, email: sobczakc@cityofcolumbiafalls.com. Office hours: City Hall, 130 6th St West, Columbia Falls, MT 59912. Building/Planning/Public Works Clerk: Caleb Sobczak, (406) 892-4432, sobczakc@cityofcolumbiafalls.com. All building, electrical, mechanical, and plumbing permit applications begin at City Hall by contacting the Building Clerk; actual building inspections are scheduled directly with the City of Whitefish Building Department, (406) 863-2410, buildingdept@cityofwhitefish.gov, under a contractual inspection-services agreement between the two cities. Source: City of Columbia Falls Building Inspection & Code Enforcement page, cityofcolumbiafalls.org/1204/Building-Inspection-Code-Enforcement. Official information: https://www.cityofcolumbiafalls.org/1240/Permits-Applications.

Columbia Falls, 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 (building, plumbing, electrical, mechanical, swimming pool, wildland-urban interface, etc.); a certified local program's adopted code 'may include only codes adopted by the Building Codes Bureau' (ARM 24.301.202). Non-certified trades/areas fall under direct state administration by the DLI Building Codes Bureau. Source: Montana DLI Building Codes Bureau, Certified City, County and Town Programs and Current Codes pages (bsd.dli.mt.gov/building-codes-permits).; Columbia Falls is a Montana DLI-certified jurisdiction for Building (B), Plumbing (P), Electrical (E), Mechanical (M), Swimming Pool (SP), AND Wildland-Urban Interface (W) within Columbia Falls city limits — the fullest certification tier on the statewide DLI list (matched only by Whitefish and Bozeman). Certified Building Official of record: Tad Lisowski, per the DLI 'CITY CODES BUILDING OFFICIAL PHONE JURISDICTION' certified-jurisdictions PDF (bsd.dli.mt.gov/_docs/building-codes-permits/certified-city.pdf), updated 04/22/2026. Legend on that PDF: B = Building, P = Plumbing, M/G = Medical Gas, E = Electrical, M = Mechanical, SP = Pool, W = WUI (Wildland-Urban Interface). Tad Lisowski is also the certified building official of record for Whitefish, consistent with the two cities' shared building-inspection arrangement.; The City of Columbia Falls has adopted all 2021 building-related codes (2021 IBC, IRC, IEBC, IMC, IFGC, IECC, ISPSC editions as adopted statewide, effective June 11, 2022) per 'Administrative Order 2022 Building Code Adoption,' referenced on the City's Permits & Applications page. Source: City of Columbia Falls Permits & Applications page, cityofcolumbiafalls.org/1240/Permits-Applications.; 2021 International Building Code (IBC) — effective statewide June 11, 2022; adopted by City of Columbia Falls per Administrative Order 2022 Building Code Adoption; 2021 International Residential Code (IRC) — effective statewide June 11, 2022; adopted by City of Columbia Falls per Administrative Order 2022 Building Code Adoption; 2021 International Existing Building Code (IEBC) — effective statewide June 11, 2022; state-adopted edition applicable within Columbia Falls' certified Building program; 2021 International Mechanical Code (IMC) — effective statewide June 11, 2022; adopted by City of Columbia Falls per Administrative Order 2022 Building Code Adoption; 2021 International Fuel Gas Code (IFGC) — effective statewide June 11, 2022; state-adopted edition applicable within Columbia Falls' certified Mechanical program; 2021 International Energy Conservation Code (IECC) — effective statewide June 11, 2022; adopted by City of Columbia Falls per Administrative Order 2022 Building Code Adoption; the City's Building Permit Application requires ResCheck or the Prescriptive Method for energy-code compliance; 2021 Uniform Plumbing Code (UPC) — effective statewide June 11, 2022; state-adopted edition applicable within Columbia Falls' certified Plumbing program (Montana uses the Uniform Plumbing Code, not the International Plumbing Code); 2020 National Electrical Code (NEC) — effective statewide June 11, 2022; applicable within Columbia Falls' certified Electrical program per the City's Electrical Permit Application, which cites Title 50, Chapter 60, MCA and ARM 24.301.421/24.301.203; 2021 International Swimming Pool and Spa Code (ISPSC) — effective statewide June 11, 2022; Columbia Falls is DLI-certified for swimming pool (SP) permitting; 2021 International Fire Code (IFC) — state-adopted edition; the City's Building Permit Application references a 'Fire Prevention Program Fee' as a distinct line item collected with building permit fees; Wildland-Urban Interface (WUI) code provisions — Columbia Falls holds DLI 'W' certification, meaning the City (not the state) enforces WUI code requirements within city limits. Source: Montana DLI Building Codes Bureau certified-jurisdictions PDF.. Local amendments apply — see the Columbia Falls overview page for the full list.