1173.09 DESIGN AND PERFORMANCE STANDARDS. 
   Detailed architectural and landscape design guidelines shall be prepared for each Planned Mixed-Use Development which shall respond specifically to the environmental character of the area, the form of existing development surrounding the site, and the particular nature of the development proposed. These guidelines shall be based on the following general requirements and standards:
(a)   Architectural Character. A Planned Mixed-Use Development is to achieve a high level of architectural design, with strong visual relationships between buildings throughout the development. Architectural guidelines shall describe the proposed formal design principles for each building type and specify appropriate proportions materials, finishes, colors, window type, decorative features, and other relevant stylistic elements.
(b)   Landscape and Open Space. Outdoor spaces throughout a Planned Mixed-Use Development are to be organized in an integrated system of focused activity places and interconnecting pedestrian pathways that serve to encourage pedestrian movement between buildings and to strengthen visual and functional connections between different areas of the development. Landscape design guidelines shall describe the proposed general character of elements of critical dimensions, and shall specify appropriate varieties of plant materials, paving types, lighting, signage, and other open space furnishings.
(c)   Streets and Access Drives. New streets proposed within the planned development site and connections to existing streets shall be designed to accepted engineering standards for the projected traffic volumes and intended design speeds.
(d)   Parking Facilities. Parking spaces in surface lots shall be designed to the following standards:
(1)   At least seventy percent (70%) of the required spaces are to be a minimum size of 9 feet by 18 feet. The remaining spaces may be designated for compact cars only and shall measure 7.5 feet by 18 feet.
(2)   At least five percent (5%) of the total area designed for 50 or more cars shall be reserved for planting islands. Landscaped islands shall be at least five feet in width.
(3)   In addition to the internal landscaping requirement, parking areas are to be screened to a height of 30 inches from adjacent street rights of way.
(4)   Parking areas are to be visually screened to a minimum height of five (5) feet above pavement where adjoining a residential district. A combination of earth berms and landscape plantings can be used.
(Ord. 1989-23. Passed 8-9-89.)