What permits are required?
A building permit is required for almost any type of construction on private property including:
  • Roofing

  • Fences - at or exceeding a height of 8 feet and retaining walls exceeding a height of four (4) Feet. *** Contact Planning at 406-657-8247 to obtain a permit for any fence between a height of four (4) feet and six (6) feet. SEC 27-604 (h) Click here:

  • Siding

  • Decks

  • Parking lots

Some of the items that do not require a permit are:
  • Detached sheds not exceeding 200 square feet

  • Painting

  • Wallpapering and similar finish work

  • Sidewalks or driveways when they will not support a structure and are located entirely on private property

In addition, certain construction activities in the public right of way may require permits.

Show All Answers

1. Where do I obtain a building permit?
2. What permits are required?
3. Are separate permits required? If so, why?
4. Can you expedite my permit?
5. Do I need sidewalks, curb and gutter, and other improvements as part of my development?
6. Do I need site, architectural, mechanical, or electrical plans?
7. How are priorities established?
8. How is the cost of a permit calculated?
9. How long will it take to get a building permit?
10. How many sets of plans do I need?
11. What are setbacks?
12. What codes do you use (years)?
13. What if I am not in the Billings jurisdiction?
14. What is the status of my permit?
15. When can I use a waiver?
16. Why is a building permit required?
17. Who is responsible for the permits?
18. Where do I direct my flood plain questions?
19. Where is my property line?
20. Why do I need a plan?
21. Why is my review taking so long?
22. What are the requirements for egress windows?