Permits will be from Franklin Co. A footer needs to be put in place. Needs to be anchored to the house with hurricane strips, as well as each truss end, wiring will need inspected, walls have to be 16" on center, with at least 1 outlet with a breaker,usually nearest to the breaker box.. Insulation is at least 3 inches. If you use 2x4's don't go over that. The walls need to breathe. Also, they won't pass it without a smoke alarm installed. More tiny rules.