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City of Arden Hills Planning Commission Meeting for May 9, 2018 P:\Planning\Planning Cases\2018\PC 18-010 - 4061 Lexington Avenue - Site Plan Review\Memos_Reports_18-010 Page 5 of 10 divided by 320). The western and southern portions of the property are forested and the current amount of caliper inches on the property exceeds this minimum requirements. There is no additional gross square footage of building area proposed as part of the application and no new tree plantings are required. For sites with a building whose height is two stores, 50 percent of trees must be between 2.0 and 3.0 caliper inches in size, 30 percent must be between 3.5 and 4.0 caliper inches, and 20 percent must be between 4.5 and 6.0 caliper inches. No new tree plantings are required as part of this application. There are a variety of tree sizes within the portion of the property that is forested. Trees Along Street Frontage – Section 1325.05, Subd. 1(F)(5) A minimum of one tree is required along the right-of-way for every 50 feet of public street frontage. There is an existing utility easement along County Road F that restricts the placement of trees along this frontage. The property has approximately 500 feet of frontage on Lexington Avenue and 10 trees would be required. There are numerous trees along Lexington Avenue on the southern portion of the site. Two new trees would be planted on Lexington Avenue as part of the development. Perennials and Shrubbery – Section 1325.05, Subd. 1(F)(6) The Zoning Code requires that a minimum of 10 percent of the total landscaped area shall be covered with perennials or shrubbery. The majority of the approximately 165,000 square feet of landscape lot area is currently forested and would remain unchanged. Approximately 3,600 square feet of perennials and shrubbery would be planted within the perimeter of the private parking, building, and driveway areas, or approximately 16.6 percent of this total area. Planting Islands – Section 1325.05, Subd. 1(F)(7) Planting islands are required to visually break up expanses of parking area. The Zoning Code requires that 10 percent of the parking area be occupied by parking islands. The property does not currently include planted parking islands. Two new planting islands would be constructed within the northern parking area covering 1,449 square feet. The total surface parking area is 31,720 square feet and the planting islands would occupy approximately 4.6 percent of this total area. Tree Preservation – Section 1325.055 A survey of the significant trees on the property was completed in January 2016 as part of a previous planning case for the site (Planning Case 16-029). The survey indicates a total of 2,228 caliper inches of significant trees on the property. The Tree Preservation Ordinance permits the removal of up to 10 percent of the significant trees on the site, or 223 caliper inches, before mitigation is required. The current proposal includes the removal of five significant trees at the southeast corner of the site with an overall caliper inch total of 68. Based on the proposed removal, no replacement trees are required at this time.