Administrative overview · FIPS 30013
Cascade County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
State Fallback
This profile identifies a handoff outside the county’s ordinary structural permitting lane.
Required jurisdiction check
Confirm the controlling local or state authority before filing.
The record is marked State Fallback. That means the county profile should be treated as a routing brief: incorporated municipalities, a state building department, or a state fire marshal may control plan review, permits, and inspections. Contact the named agency below and verify the parcel’s jurisdiction before paying a fee or scheduling field work.
Responsible agency
Montana Department of Labor & Industry, Building Codes Bureau for building-code enforcement; Cascade County Planning & GIS issues Location/Conformance permits and explicitly states it does not enforce building codes
For a project in or near Cascade County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
(406) 454-6905 (Cascade County Planning & GIS); (406) 841-2056 (State Building Codes Bureau)
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Cascade County Planning & GIS Department, 121 4th Street N, Suite 2H/I, Great Falls, MT 59401; Montana Building Codes Bureau, 301 South Park Avenue, Helena, MT 59620
Operating hours
Cascade County Planning & GIS: Monday-Friday 8:00 AM-noon and 1:00-5:00 PM; the department announced temporary Friday-afternoon appointment-only service beginning July 10, 2026. State Bureau hours were not published on the reviewed permit page.
Review expectation
The state plan-review average is three weeks. Cascade County states incomplete, withdrawn, or applicant-held Location/Conformance applications expire after three months and require a new application.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Cascade County
Who handles permitting for this jurisdiction?
This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (406) 454-6905 (Cascade County Planning & GIS); (406) 841-2056 (State Building Codes Bureau).
How long might review take?
The state plan-review average is three weeks. Cascade County states incomplete, withdrawn, or applicant-held Location/Conformance applications expire after three months and require a new application.
How are inspections scheduled?
Obtain the county Location/Conformance permit through Cascade County Planning & GIS first when applicable, then apply to the Montana Building Codes Bureau for covered building work. The state permit holder must notify the assigned inspector when work is ready and provide access; call (406) 841-2056 for state inspection questions.
Which codes and exemptions should I review?
Montana’s current 2026 code set: 2021 International Building Code, 2021 International Residential Code, 2021 International Existing Building Code, 2021 International Mechanical Code, 2021 International Fuel Gas Code, 2021 International Energy Conservation Code, 2021 Uniform Plumbing Code, 2020 National Electrical Code, 2021 International Swimming Pool and Spa Code, and 2021 Wildland-Urban Interface Code, as amended by ARM Title 24, Chapter 301. Cascade County Planning confirms building codes are enforced by the state program, not county planning. Cascade County’s Location/Conformance permit is not required for non-commercial projects where the proposed building or structure is 200 square feet or less, or for site preparation as defined by the county zoning regulations. State building-permit exemptions separately include farm/ranch buildings, mine buildings, certain industrial facilities, small residential buildings, and owner-used private garages/storage buildings.