Do I need a Building Permit? 

Any type of new construction requires a Building Permit.

It you are expanding your house, shed, porch, deck or any other structure that is on your property, then a permit is required. If you are putting up or building a temporary storage building a permit is required.

A permit is not required for nonstructural maintenance and repairs (defined in section 3101 to include work such as painting, roofing, the replacement of interior and exterior doors or windows that does not change their openings, the repair, replacement, or refurbishing of flooring and tiling, and the like, but to exclude work that changes the footprint or floor area of a structure or involves the addition or removal of an interior wall, the addition or sealing up of a door opening, or any change to plumbing (other than the replacement of fixtures) or electrical wiring).

Don't forget your plumbing permit! Does your new addition have a bathroom, washing machine or a dishwasher? If it requires a drain to make the waste water disappear it probably also requires a plumbing permit to make that magic happen. If you have questions call the Town Office or check with your plumber.