Fences & Retaining Walls

Fence Requirements


Fences three to six feet in height:
  • Do not require a building permit
  • Require a permit from the Planning Department
  • For more information contact the Planning Department at (406) 657-8247

Fences that exceed seven feet in height:
  • Require a building permit
  • Shall be designed for a 105 MPH wind load per the adopted codes
  • A site plan (four copies) is required as part of your submittal and will be reviewed by the Planning Department

Retaining Wall Requirements


Walls of any height that supports a surcharge/slope of any kind or four feet or more in height, shall be designed by a Montana licensed Engineer, and shall be wet stamped and wet signed.
  • Require a building permit
  • Shall be designed in accordance with recognized engineering practices (a stamped design is required)
  • A site plan (four copies) is required as part of your submittal and will be reviewed by the Planning Department
Walls four feet or more in height:
  • Should be reviewed by the Planning Department for conformance with zoning regulations
  • For more information contact the Planning Department at (406) 657-8247