Do I Need a Permit to Build a Fence in Montana?
Fence permit requirements for residential fencing. Height limits, setback rules, and when you need a permit.
Sometimes — many fences need only zoning/setback approval; a building permit kicks in mainly for fences over 7 feet or with structural elements.
General Rule
Practice varies by city. The building code (IRC R105.2) exempts fences up to 7 feet tall from a building permit, and many jurisdictions follow that — requiring only that your fence comply with zoning rules for height, setback, and materials. Other cities do require a low-cost permit ($25-$50) for any new fence. Fences over 7 feet, and fences with structural elements like masonry columns or retaining walls, always need a building permit. Either way, zoning compliance is mandatory even when a permit isn't — so confirm your city's rule before you build.
Height Restrictions
In most residential zones: front yard fences are limited to 4 feet, side and rear yard fences are allowed up to 6 feet. Corner lots have additional sight-triangle restrictions near intersections. Fences over 6 feet may require a variance or special approval. Confirm the specific thresholds with your city.
Common Gotchas
The most common fence permit issues: building on or over the property line (get a survey first), blocking a drainage easement, installing prohibited materials in residential zones (barbed wire, electric), and exceeding height limits in the front yard. Call 811 before digging post holes to locate underground utilities.
HOA Rules
Many subdivisions have HOA covenants that are stricter than city code — requiring specific materials, colors, or styles. HOA approval is separate from the city permit. Get both before building.
Check your city first — you may need only zoning approval, or a low-cost ($25-$50) permit. Confirm height and setback rules before breaking ground; it's cheap insurance against having to tear down a non-compliant fence.
Permit fees by city in Montana
Verified from each city’s published fee schedule. Where a city has no separate fee listed for this project, open the city page for the current requirements and amount.
| City | Permit fee | Source |
|---|---|---|
| Anaconda-Deer Lodge | $12.50Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Belgrade | Valuation x 0.0024Verifiedvia Residential Building Permit (New Construction, ADU, Addition, Remodel) | Residential Building Permit (New Construction, ADU, Addition, Remodel) → |
| Billings | $30.00Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Bozeman | (Administrative Charges/Employee/Hour + Inspector's Hourly Pay Rate) x Table A factor (amount of inspection time per sq ft, by construction type and fire rating) x Building Square FootageVerifiedvia Residential New Construction Permit | Residential New Construction Permit → |
| Butte-Silver Bow | $75.00 per hour, one-hour minimumVerifiedvia New Residential Construction Permit | New Residential Construction Permit → |
| Choteau | See city page for the current Residential Building Permit (New Construction / Addition / Alteration) fee | Residential Building Permit (New Construction / Addition / Alteration) → |
| City of Deer Lodge | $20Verifiedvia Residential Building Permit (New Construction / Addition / Remodel) | Residential Building Permit (New Construction / Addition / Remodel) → |
| Colstrip | See city page for the current Residential Building Permit (New Construction / Addition / Alteration / Repair / Move) fee | Residential Building Permit (New Construction / Addition / Alteration / Repair / Move) → |
| Columbia Falls | Calculated at time of submission based on project valuation; the City's own application form does not print a standalone valuation-fee table (field left blank for Building Department completion). No dedicated Columbia Falls fee-schedule document was found published separately from the application form after exhaustive search of the City's DocumentCenter, site search, and Resolutions listings.Verifiedvia Residential Building Permit (New Construction / Addition / Remodel / Repair) | Residential Building Permit (New Construction / Addition / Remodel / Repair) → |
| Conrad | See city page for the current Zoning and Building Permit (New Construction / Addition / Alteration / Repair) fee | Zoning and Building Permit (New Construction / Addition / Alteration / Repair) → |
| Cut Bank | $23.50 (subject to the $100.00 minimum permit fee)Verifiedvia Residential Building Permit (New Construction / Addition / Alteration) | Residential Building Permit (New Construction / Addition / Alteration) → |
| Darby | $29.38Verifiedvia Building Permit (New Construction, Addition, Alteration, Repair) | Building Permit (New Construction, Addition, Alteration, Repair) → |
| East Helena | See city page for the current Construction Permit — Residential Building (New Construction / Addition / Remodel) fee | Construction Permit — Residential Building (New Construction / Addition / Remodel) → |
| Forsyth | See city page for the current Residential Building Permit (New Construction / Addition / Alteration) fee | Residential Building Permit (New Construction / Addition / Alteration) → |
| Glasgow | $5.00Verified | Fencing Permit → |
| Great Falls | Ranges from $62.61 (value $1-$1,000) up to $710.45 (value $49,001-$50,000), per the $1,000-increment table in Exhibit AVerifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Hamilton | $25Verified | Fence Permit → |
| Hardin | See city page for the current Residential Building Permit (New Construction / Addition / Alteration / Re-Roof) fee | Residential Building Permit (New Construction / Addition / Alteration / Re-Roof) → |
| Havre | $23.50Verifiedvia Residential Building Permit (New Construction / Addition / Remodel) | Residential Building Permit (New Construction / Addition / Remodel) → |
| Helena | Per Ordinance 3134 Appendix A valuation tableVerified | Fence Permit → |
| Kalispell | $23.50Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Laurel | $100.00Verified | Fence Permit → |
| Lewistown | See city page for the current Residential Building Permit (New Construction / Additions) fee | Residential Building Permit (New Construction / Additions) → |
| Libby | $24Verifiedvia Residential Building Permit (New Construction / Addition / Alteration / Repair) | Residential Building Permit (New Construction / Addition / Alteration / Repair) → |
| Livingston | $23.50Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Manhattan | See city page for the current Fence Permit fee | Fence Permit → |
| Miles City | Set by a City of Miles City fee schedule adopted by council resolution under City Code § 5-4; the specific dollar-valuation table was not independently locatable as a standalone published document as of this review (see note)Verifiedvia Building Permit (New Construction / Addition / Remodel / Repair) | Building Permit (New Construction / Addition / Remodel / Repair) → |
| Missoula | $36 permit fee + $11.00 plan review feeVerifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Missoula County (Unincorporated) | $26.00Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Polson | $50.00Verified | Fence Permit (Fencing Application) → |
| Red Lodge | See city page for the current Residential Building Permit (New Construction / Addition / Alteration) fee | Residential Building Permit (New Construction / Addition / Alteration) → |
| Ronan | $35.00 minimum (valuation $1,999 or less), scaling per the City's Building Permit Fee Schedule WorksheetVerified | Fence Permit → |
| Shelby | $23.50Verifiedvia Building Permit (New Construction / Addition / Structural Alteration) | Building Permit (New Construction / Addition / Structural Alteration) → |
| Sidney | $23.50Verifiedvia Residential Building Permit | Residential Building Permit → |
| Stevensville | $35 (minimum fee)Verifiedvia Building Permit (New Construction / Addition / Remodel) | Building Permit (New Construction / Addition / Remodel) → |
| Townsend | See city page for the current Building Permit — Residential Building (New Construction / Addition / Remodel) fee | Building Permit — Residential Building (New Construction / Addition / Remodel) → |
| Troy | $24Verifiedvia Residential Building Permit (New Construction / Addition / Alteration / Repair) | Residential Building Permit (New Construction / Addition / Alteration / Repair) → |
| Unincorporated Yellowstone County | Calculated based on project valuation (fee schedule not published inline on the application; contact Building Codes Bureau at (406) 841-2056 for the current valuation-based fee table)Verifiedvia Residential Building Permit | Residential Building Permit → |
| West Yellowstone | See city page for the current Residential Building Permit (New Construction / Addition / Alteration / Repair) fee | Residential Building Permit (New Construction / Addition / Alteration / Repair) → |
| Whitefish | Based on a percentage of the estimated project cost (valuation-based); a deposit is required at time of permit submittalVerifiedvia Residential Building Permit (New Construction / Addition / Remodel) | Residential Building Permit (New Construction / Addition / Remodel) → |