It is the purpose of this section to establish regulations and controls for the use of land and structures, areas of lots, bulk of buildings, amount and kind of open space, land, the provision of off-street parking and other similar accessory regulations in a planned residential development in accordance with guidelines set forth in the Pennsylvania Municipalities Planning Code, Act 247, as amended. Planned residential development is designed to provide for developments incorporating a single type or variety of residential and related uses which are planned and developed as a unit. Such development may consist of individual lots, or it may have common building sites. Further, planned residential development is intended:
A. To encourage innovations in residential development and renewal so that the growing demand for housing may be met by a greater variety in type, design and layout of dwellings and by the conservation and more efficient use of open space ancillary to said dwellings.
B. To encourage a more efficient use of land and of public service.
C. To provide a procedure which can relate the type, design and layout of residential development to the particular site.
D. To encourage a pattern of development which is innovative and may not otherwise be allowable under current zoning standards.