Digital permit application gateway
Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.
Recommended first click
Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.
Typical review lane
The Montana Building Codes Bureau states that plan review averages three weeks; issuance follows resolution of comments and payment of fees.
Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.
Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.
Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.
Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.
Application documents
Before submission, call (406) 841-2056 (State Building Codes Bureau); (406) 443-3962 (Blaine County Floodplain Management/WWC Engineering) if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.
Source trail
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
This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (406) 841-2056 (State Building Codes Bureau); (406) 443-3962 (Blaine County Floodplain Management/WWC Engineering).
The Montana Building Codes Bureau states that plan review averages three weeks; issuance follows resolution of comments and payment of fees.
For covered work outside certified local jurisdictions, contact the Montana Building Codes Bureau at (406) 841-2056 for permit and inspection instructions. For floodplain work, contact Blaine County’s contracted floodplain manager, WWC Engineering, at (406) 443-3962; the county directory also lists subdivision planning contacts.
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. At the state level, farm or ranch buildings, mine buildings on the mine site, petroleum refineries and pulp/paper mills except office/shop buildings, private homes or apartments with four or fewer dwelling units that do not serve transient guests, and private garages/storage buildings used only by the owner are generally exempt. A Blaine County floodplain permit is still required before development in a regulated floodplain, and county subdivision/site requirements can apply.
What makes an application complete
Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.
Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.
Submission quality check
Site: address, parcel, access, setbacks, and existing conditions are consistent.
Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.
Closeout: inspection contacts and the final approval path are understood before work begins.