1185.06 DEVELOPMENT PRINCIPLES AND STANDARDS; MINIMUM PROJECT AREA.

   The gross area of a tract of land to be developed in a Planned Unit Development District shall be a minimum of twenty acres, provided, however, that smaller parcels may be considered on the basis of their potential to satisfy the objectives of this chapter as stated in Section 1185.01.

   (a)   Planned Unit Development District-Residential.

      (1)   Maximum Density of Residential Development. The dwelling unit density of any area is to remain unchanged and conform to the basic overall density requirements of the standard zoning district:

         However, the dwelling unit density may be increased if the character of the development and/or amenities incorporated in the development warrant an increase in density. In no case, however, shall the dwelling unit density exceed the density which would be achieved under the standard zoning district designation by more than twenty percent (20%), where the City Planning Commission determines that it would be appropriate to apply a higher density to the uses proposed in the Development Plan. The percentage increase in density shall be governed by the factors listed below which are to be treated as parts and not totals:

         A.   Open space reservations shall be considered cause for dwelling unit density increases, in accordance with the following:

            1.   Maximum dwelling unit density increase of ten percent (10%) for the first acre of open space per twenty total acres of development;

            2.   Maximum dwelling unit density increase of six percent (6%) for the second acre of open space for twenty total acres of development;

            3.   Maximum dwelling unit density increase of three percent (3%) for each additional acre of open space per twenty total acres of development.

         B.   Character, identity, architectural and siting variations incorporated in a development shall be considered cause for dwelling unit density increases not to exceed the density which would be achieved under the standard zoning district designation by more than twenty percent (20%), provided such design variations make a substantial contribution to the objectives of the Planned District. The degree of distinctiveness and desirable variation achieved shall govern the percentage of increase in dwelling unit density which Council may approve. Incorporated design elements may include, but are not limited to, the following:

            1.   Landscaping:

               a.   Streetscape.

               b.   Open space and plazas.

               c.   Pedestrian-way treatment.

               d.   Recreational areas.

            2.   Siting:

               a.   Visual focal points.

               b.   Use or treatment of existing land features.

               c.   Circulation pattern.

               d.   Variations in building setbacks.

               e.   Building groups.

            3.   Design features:

               a.   Architectural styles.

               b.   Harmonious use of building and screening materials.

               c.   Parking arrangements broken by screening devices of landscape features.

               d.   Varied use of dwelling types and arrangements:

                  i.   Atrium or court.

                  ii.   Townhouse.

                  iii.   Terrace.

                  iv.   Tower.

               e.   Unique group developments:

                  i.   Housing for the elderly.

                  ii.   Singles' apartments.

                  iii.   Retirement community.

      (2)   Variations in Lot Area and Dimensions. The maximum number of dwellings permitted in a Planned District shall conform to the overall density approved for the Plan. However, lot area and dimensions do not have to meet the specific Ordinance requirements. Residential lot size and lot width reductions shall be permitted in accordance with the following schedule:

         A.   Up to thirty percent (30%) reduction in lot size and a thirty percent (30%) reduction in lot width shall be permitted, providing up to thirty percent (30%) of the total site area (excluding street right of way) is devoted to open space or recreational facilities.

         B.   Drawings and plans as submitted shall show that the relationships between interior and exterior living areas on the site are desirable and adequate, and that the living environment is as desirable as compliance with the strict requirements of the Zoning Ordinance.

         (Ord. 86-260. Passed 12-16-86.)

   (b)   Planned Unit Development District-Professional.

      (1)   Units in a planned unit development-professional shall be subject to the area, height and bulk regulations provided for in Section 1167.04.

         (Ord. 91-156. Passed 5-21-91.)