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<br /> setback requirements may be modified by the <br /> . city in the project review process if <br /> specific conditions of the project plan <br /> justify modification. <br /> (e) Landscaping. Appropriate and unified landscaping <br /> is essential to effectively meet the defined <br /> purpose of the GB District. <br /> 1. A landscape plan shall be submitted in the <br /> general plan stage required in Section <br /> VIII.G.(3). <br /> 2. The landscape plan shall include species, <br /> size and location of all plant materials. <br /> 3. In the concept plan stage, natural existing <br /> vegetation, earth forms, wetlands and steep <br /> slopes shall be carefully evaluated and <br /> protected as appropriate. <br /> 4. Landscape berms and buffers will be used to <br /> screen and visually separate: business sites <br /> from residential uses; business sites from <br /> public streets; and one site from another. <br /> . 5. Minimum planted tree sizes shall be 3 inch <br /> caliper for overstory deciduous trees, 2 inch <br /> caliper for ornamental trees and 8 foot <br /> height for coniferous trees. The required <br /> height of evergreens used for required <br /> screening may be increased by the city. <br /> 6. Special landscape enhancement of views for I- <br /> 694 and 1-35W will be required. <br /> 7. A minimum of 35 percent of the total area of <br /> a mixed use or single use district shall be <br /> landscaped. <br /> 8. Minimum landscaping requirements shall <br /> relate to the gross square footage of all <br /> floors of a building and the building height <br /> and shall be expressed as the minimum number <br /> of total caliper inches required per building <br /> site. <br /> a. Minimum total caliper inches = Gross <br /> square footage of all floors of building <br /> divided by 320. <br /> . <br /> 7 <br /> ---- <br />