Common property in the PDD. Common property is not required to be considered for PDD status. However, it is often characteristic of such proposals. Common property within a PDD is a parcel or parcels, with or without the improvements thereon, the use and enjoyment of which are shared by the owners and occupants of the individual building sites. When common property exists in private ownership, satisfactory arrangements must be presented for the improvement, operation and maintenance of such common property and facilities, including private streets, service and parking areas, and recreational and open space areas.