(1) all new developments;

(2) any addition to an existing structure when the cost of the addition exceeds fifty (50) percent of the current assessed valuation of the existing structure;

(3) any expansion of a manufactured home park in which the number of new manufactured home lots exceeds fifty (50) percent of the number of existing manufactured home lots;

(4) situations where this Chapter imposes a requirement for buffering or screening between two (2) uses, one of which is existing and the other new. The responsibility for satisfying this requirement rests entirely on the new use. (Ord. 03-33 §17, 2003; Ord. 87-9 §1, 1987).