The purpose of this Planned Residential Development Ordinance is to:
a) Insure that the provisions of the City Zoning Ordinance which are concerned with the uniform treatment of dwelling type, bulk, density and open space within each zoning district, shall not be applied to the improvement of land by other than lot-by- lot development in a manner which would distort the objectives of such Zoning Ordinance;
b) Encourage innovations in residential development and renewal so that the growing demand for housing may be met by greater variety of type, design and layout of dwellings and by the conservation and more efficient use of open space ancillary to such dwellings;
c) Provide greater opportunities for better housing and recreation for all who are or shall be residents of the City;
d) Encourage a more efficient use of land and public services and to reflect changes in the technology of land development so that the economics so secured may ensure to the benefit of those who need homes; and
e) In aid of these purposes, provide a procedure which can relate the type, design and layout of residential development to the particular demand for housing existing at the time of development in a manner consistent with the preservation of the property values within existing residential areas, and to ensure that the increased flexibility of regulations over land development established hereby is carried out pursuant to sound, expeditious and fair administrative standards and procedures.