The location, extent, and purpose of common land proposed to be set aside for common open space or for recreational use within any subdivision must be reviewed and approved by the Planning Commission before the provisions of this section apply. A private recreational use, such as a golf course or a swimming pool, whose use is limited to the owners or occupants of lots located within the development, may be approved as common land. Other uses or sites which may qualify as common land include historic buildings or sites, natural parks and parkway areas, landscaped parks, bridle paths, landscaped walkways, extensive areas with tree cover, and low land along streams or areas of rough terrain where such areas are extensive and have natural features worthy of preservation.