When is a building permit necessary?

As a homeowner or contractor, there may be times when you are uncertain whether it is necessary to secure a building permit. The following guidelines should be used:

Work Requiring a Permit: (The following list is not meant to be exclusive, if you are in doubt as to whether the work you are considering needs a permit, please call the Building Inspector.)

  • New homes, additions, garages
  • Storage sheds over 200 square feet
  • Interior renovations, involving the cutting away of any wall or structural member.
  • Decks and ramps.
  • Roofing (when re-roofing more than 25% of existing roof).
  • Siding (when re-siding more than 25% of existing house).
  • Window or exterior door replacement.
  • The installation of swimming pools, hot tubs, or spas.
  • Fences over 7 feet high.
  • Retaining walls over 4 feet high.
  • Wood stoves, fireplace inserts, fireplaces, or chimneys, outdoor wood furnaces.
  • Demolition of any existing structure.
  • Signs-new or alteration of existing signs.
  • Change of use (e.g., from storage to living space.)

A permit is not necessary for ordinary repairs: "Any maintenance which does not affect the structure, egress, fire protection systems, fire ratings, energy conservation provisions, plumbing, sanitary, gas, electrical or other utilities."

Show All Answers

1. Do I need to obtain a building permit?
2. When is a building permit necessary?
3. Why should I get a permit?
4. Can I begin work once I submit my application?
5. How long does it take to obtain a permit?
6. How much will my permit cost?
7. Once I obtain my permit, how long do I have to start the work? How long do I have to finish my project?
8. My project is completed. How do I get my certificate of occupancy / completion?