Shed Permit Requirements in Missoula, MT
Montana adopted the 2021 IRC effective June 2022. Permit & Business Licensing Coordinators: (406) 552-6060. Inspection Hotline: (406) 552-6040.
By Joey, Founder · Last verified March 28, 2026 · How we research →
When you don’t need a Shed permit in Missoula
Accessory structures 120 square feet or less do not require a building permit.
When you need a Shed permit in Missoula
Accessory structures over 120 square feet require a building permit.
Sheds with electrical wiring require an electrical permit regardless of size.
What Makes Missoula Different
Here's how Missoula's shed rules stack up against the standard IRC baseline that most of the country follows.
Stricter Than the IRC
Accessory structures over 120 square feet require a building permit.
Sheds with electrical wiring require an electrical permit regardless of size.
1 rule match the IRC baseline, no surprises there.
Shed Permit Costs: Missoula vs. Nearby
Missoula's fees are right in line with the Montana average, $52 – $262 versus $48 – $158 statewide.
| City | Estimated Fee |
|---|---|
| Missoula | $52 – $262 |
| Billings | $50 – $250 |
| Great Falls | $45 – $225 |
| Bozeman | $55 – $275 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Missoula permit costs →
Zoning & HOA Considerations
Sheds may be subject to zoning setback requirements and lot coverage limits. Placement near property lines or in front yards may require zoning approval.
If you live in an HOA community: many HOAs restrict or prohibit outbuildings. Check your CC&Rs for rules on shed size, placement, materials, and appearance before purchasing or building.
Estimated Project Timeline in Missoula
Here's a typical timeline for a shed project in Missoula, MT:
Timeline is based on Missoula's typical about 2 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Estimated permit fees for Shed projects in Missoula, MT range from $52 – $262. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Shed projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Missoula can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Shed permits in Missoula is about 2 weeks. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Shed Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Shed Guide →