1163.08 PROGRESSIVE DEVELOPMENT.
   (a)   A developer, having obtained final approval of any preliminary plan of a development area, may accomplish the development in progressive stages as may be approved by the Commission.
 
   (b)   When the final plan of the development area provides for partial development of the total area for which a preliminary plan has been approved, the Commission may require detailed plans for all improvements in the development area to permit evaluation of the development of the entire parcel before development in progressive stages may be approved.