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Appendix A also outlines minimum landscaping requirements relating to the square footage of the floors of a building and the building height. The maximum buildout plan identifies 499,900 square feet ofbuilding area. The area (499,900), divided by 320, requires 1562 minimum total caliper inches for this plan. Appendix A also outlines required percentages of trees at various caliper inches according to the building height. For buildings over 5 stories in height, 30% must be 2.0" to 3.0", 50% must be 3.5" to 4.0" and 20% must be 4.5" to 5.0". However, the applicant has stated that landscape standards and practices have changes significantly over the last decade which is why differing Design Standards have been proposed. One of the changes involves ongoing recommendations from horticultural, forestry 'and nursery professionals to plant smaller overstory and understory trecs due to significant local shortages of commonly planted varieties and sizes oftrees (2 to 5 inch caliper for overstory and I 112 to 3 inch caliper for understory) and to minimize transplant shock and tree loss. Smaller trees are easily handled, less susceptible to planting damage, more adaptable to their environment and less likely to decline or die. A landscape performance bond at 125% of the cost of materials and installation must be provided prior to the issuance of a building permit. The proposed PUD will also require replatting of all of the properties into one developable property, requiring park land dedication by the Subdivision Ordinance requirements. Section 22-9 of the City Code requires dedication ofland or cash or both, not to exceed ten percent of the area of the property or the fair market value ofthe property at the time of project approval. Park land dedication should be easily satisfied through the preservation of 54% of the site as landscape area. . e) Building Exteriors. The Design Standards identify primary (brick, stone, glass integrally colored architectural precast) and secondary (decorative block, integrally colored stucco, heavy guage aluminum, prefinished architectural metal) exterior building materials which are acceptable by the Zoning Ordinance and will compliment surrounding buildings. All service entrance areas and loading docks, mechanical equipment and trash handling devices are proposed to be screened to match the building materials, as required by Ordinance. 1) Parking. The Design Standards propose to meet the Ordinance requirements for individual parking space size and aisle width. Parking areas will also be screened. All off-street parking areas will have a paved surface, be curbed and accessible to a public street. The Design Standards propose a parking ratio of one space per 200 square feet of floor area, one of the stricter parking requirements in the Ordinance, with the stipulation that those uses requiring additional parking by Ordinance will be required to adhere to the Ordinance. Landscape islands of approximately ten percent ofthe total surfaced parking area, are required by Ordinance and outlined in the landscaping section of the Design Standards. . 4