(a) General Provisions. In any zoning district, a mixed use development may be proposed and approved. A mixed use development is one in which no less than fifty-one percent (51%) of the uses proposed therein are permitted in the existing zoning district. The balance of the uses proposed therein may be other uses that in the considered to be complimentary to the uses permitted therein. A mixed use development may include a variety of housing types, or a mixture of residential, commercial and office uses that demonstrate creative site design and land planning techniques. Architectural design is a key element of a mixed use development to blend land uses and urban activity together into a appealing urban space. Clustering of homes so that large areas of land can be left in open space is also encouraged. Developments regulated by this section shall conform to approval procedures described in Chapter 1135.
(1) Minimum development size. A mixed use development shall cover an area of not less than ten (10) contiguous acres which shall not be divided into parts by any State or federal limited access highway, by any large area of land not included in the proposed development, or by any railroad rights of way. The existence of public or private streets or highways (other than limited access highways), electrical transmission lines, transmission pipes or other rights-of-way (in fee or easement) within any area shall not be considered as any large area of land not included when determining if an area is contiguous.
(2) Public utilities required. City sanitary sewerage facilities and City water facilities shall be required.
(3) Open space requirement. No less than twenty (20) percent of the total land area must be devoted to open space dedicated to public use or for the exclusive use of residents of the planned unit development. No single park or open space area in a planned unit residential development shall contain less than one (1) acre of contiguous land.
(4) Maximum number of residential dwelling units. The overall density of residential development shall not exceed the average density that would have been permitted if the area was developed conventionally. The maximum number of lots that may be created shall be computed by:
A. Subtracting twenty (20) percent of the total area from the total site size and dividing the remaining land area by the minimum lot size requirement of the district in which the planned unit development is located; or
B. Submitting a development plan indicating the number of lots that could be created on the site in question while complying with conventional lot size regulations for the district.
(b) Plan Submittal Requirements. Along with the submittal of plans, drawings and other documentation required pursuant to Chapter 1135, the plans shall provide a description of architectural details and urban design illustrations that depict how the development will be designed and will function as an urban place. Non-vehicular travel shall be given greater emphasis in the overall design, along with landscaping to buffer and enhance key areas of the development. These plans and illustrations shall be prepared by an architect or engineer and specifically contain the following elements:
(1) The boundaries of the entire planned unit residential development.
(2) The acreage of the entire planned unit residential development.
(3) The proposed street system for the development.
(4) The location and numbers of spaces of the proposed parking lots within the development.
(5) The areas of the district to be used for single-family dwelling and the areas designated for other residential or non-residential areas.
(6) The number of dwelling units by type and the number of bedrooms per unit by type.
(7) The projected ultimate population of the development.
(8) Calculations describing the proposed residential density and open space ratios.
(9) Descriptive data as to the methods to be employed to preserve and maintain the open space in perpetuity.