No persons shall place, move onto or affix to the land in any manner any building which was formerly located in another site, unless approval of the planning commission has first been obtained. The term "building", as used herein, means any structure designed, built or occupied as a shelter or roughed-in enclosure for persons, animals or property, and used for residential, business, mercantile, storage, commercial, industrial, institutional, assembly, educational or recreational purposes. An accessory structure having a floor area of less than one hundred (100) square feet and being less than eight feet (8') high, and modular homes or buildings of new construction, as defined in this title, shall not be regulated by this chapter. (Ord. 2000-23, 7-18-2000)