If an existing use within a PIP District is proposed to be changed to a separate, different and distinct use, an application must be made for site plan approval to the Village Board. As part of the review of said application, the Village Board may require changes in the development of the site. These changes may include, but shall not be limited to, off-street parking, loading areas, landscaping and screening, lighting, signage and access which would be necessary to accommodate the proposed new use.