What projects do not require building permits?

The following projects don't require building permits:

  • Work such as floor coverings, painting, cabinetry and countertops. 
  • Replacement of windows or doors which are the same size as the window or door being replaced. Note: The windows and doors installed must meet current energy standards. 
  • Residential sheds without foundations and under 200 square feet. Note: The shed still needs to meet setbacks for accessory buildings. For setback information contact the city’s Planning Department at 406-758-7940.
  • Decks not attached to a home, are less than 30 inches off the ground, and have no roof structure. 
  • Residential roof replacement unless more than 10% of the sheathing is being replaced. Note: Only 2 layers of shingles are allowed per code.

Show All Answers

1. Where is the office located?
2. What building codes are currently being used?
3. What projects do not require building permits?
4. Can I do my own plumbing and mechanical work? Would I still need a permit to do this work?
5. Do contractors need to be licensed with the State in order to do work in the city?
6. Are businesses/contractors required to be licensed to operate in the city?