A permit must be obtained before beginning construction, alteration or repairs, other than ordinary repairs. (Ordinary repairs are nonstructural repairs and do not include addition to, alteration of, or replacement or relocation of water supply, sewer, drainage, drain leader, gas, soil, waste, vent or similar piping, electrical wiring, or mechanical or other work for which a permit is required by the building official). Work requiring permits includes swimming pools over 24 inches in depth, decks, window replacements, installation of a wood or pellet stove, and installation of a pre-fabricated shed on your property. For more information, or if you having problems using the system, please call 617-577-9000, ext. 2.