Administrative overview · FIPS 30063
Missoula 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
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Missoula County Public Works Building Division; the division issues building permits and performs inspections outside Missoula city limits, coordinating with Planning, Development & Sustainability and Environmental Health
For a project in or near Missoula 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) 258-3701 (Missoula County Building Division); (406) 258-4642 (Planning, Development & Sustainability)
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Missoula County Public Works Building Division, 6089 Training Drive, Missoula, MT 59808
Operating hours
N/A; the official Building Division page publishes the office address and contacts but not regular public-counter hours.
Review expectation
N/A; Missoula County’s reviewed Building Division and permit-guide pages provide application and inspection instructions but no single typical plan-review timeline.
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 Missoula County
Who handles permitting for this jurisdiction?
Missoula County Public Works Building Division; the division issues building permits and performs inspections outside Missoula city limits, coordinating with Planning, Development & Sustainability and Environmental Health is the identified county-level authority for this profile. Confirm that the property is in its service area 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) 258-3701 (Missoula County Building Division); (406) 258-4642 (Planning, Development & Sustainability).
How long might review take?
N/A; Missoula County’s reviewed Building Division and permit-guide pages provide application and inspection instructions but no single typical plan-review timeline.
How are inspections scheduled?
Use the Missoula County online permit guide to apply. Inspections can be requested at least 24 hours in advance by calling (406) 258-3701, option 1, and leaving a message; remote roof inspections are also available. Contact Planning, Development & Sustainability for zoning or land-use review and the Missoula Conservation District for required 310 stream permits.
Which codes and exemptions should I review?
Missoula County’s certified county building program applies Montana-adopted and amended building codes outside Missoula city limits, including the current 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 Montana rules. Missoula city limits use the city’s separate building division. Missoula County’s current permit guidance states that detached storage structures such as garages, sheds, or pole barns may not require a building permit under the June 4, 2026 update, but they remain subject to applicable land-use, zoning, floodplain, shoreline, and other permits. Other exemptions must be confirmed with the Building Division; agricultural, utility, site, and manufactured-home work may trigger separate approvals.