The PRD is intended to accommodate a variety of housing styles and densities and may include retail commercial activities geared to the PRD resident market. The purpose, intent and application of the PRD is as follows: To most effectively utilize land areas in the city which have characteristics such as steep slopes, floodplain proximity, river view and the like which makes conventional platting and rigid bulk and area requirements of zoning difficult to apply; To encourage a variety and flexibility in land development and land use in a zone that will be predominantly residential; and To maximize the enhancement of and minimize the disruption of existing natural features and amenities found in the PRD sites.