It shall be the policy of the Village of Richwood to promote progressive development of land and construction thereon by encouraging planned unit developments to achieve:
(a) A maximum choice of living environments by allowing a variety of housing and building types and permitting an increased density per acre and a reduction in lot dimensions, yard, building setback and area requirements.
(b) A more useful pattern of open space and recreation areas and, if permitted as part of the project, more convenience in the location of accessory commercial uses and services.
(c) A development pattern which preserves and utilizes natural topography and geologic features, trees and other vegetation, and preserves the disruption of natural drainage patterns.
(d) A more efficient use of land is generally achieved through conventional development resulting in substantial savings through shorter utilities and streets.
(e) A development pattern in harmony with land use density, transportation facilities, and community facilities objectives of the comprehensive plan.
The Village is also prepared to accept a greater population density in undeveloped areas than that reflected by present zoning provided the developer can demonstrate that any increment of public cost clearly attributable to increased densities will be compensated for by the private amenities and public benefits to be achieved by the plan of development.