With few exceptions, any structure over 120 square feet in size requires a construction permit (even if it doesn’t have a foundation). Unless you are doing minor repairs (fixing small amounts of drywall, replacing the glazing in a framed window, replacing a sink, commode, door, or installing a low deck without a open or closed roof) you will need to get a construction permit. Plumbing and electric work is very tricky and can result in damage, injury or death if not done properly. If you are working on your own house, you do not need to be a contractor. Our plan checkers and inspectors are very used to helping owner-builders, so don’t be intimidated by the process - in fact for many small projects, you can get a permit in an hour or less.