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Attachment 2: Landscaping and Tree Preservation Standards - REVISED JUNE 21, 2010 Page 3 <br />3 Landscaping Standards. New residential platted subdivisions, mixed use, commercial, <br />institutional and industrial uses shall be subject to the landscaping standards. The landscape <br />standards have been divided into four categories: Canopy Cover (C), Foundation Landscape <br />(FL), Open Areas Landscape (OL),Landscape Screen (LS) and boulevard trees. <br />4 Canopy Cover (C). The purpose of this requirement is to mitigate the effects of vehicular <br />hardscape by establishing tree canopy cover to intercept rainfall, protect pavement from sun <br />deterioration, reduce the heat island affect, and improve aesthetics. Vehicular hardscape <br />areas includes loading drives, parking lots, driveways, dropoffs and other areas covered with <br />a hard surface intended for vehicles. <br />a. The required minimum canopy coverage for all uses is 40 %. <br />b. The following equation shall be used to calculate required canopy coverage: <br />Vehicular Hardscape (square Feet) x Canopy Cover Percent = Required Minimum Canopy Cover (Square Feet) <br />The total of the assigned canopy coverage values for all the trees in or near the vehicular <br />hardscape must be equal or greater than the required minimum. Pervious pavements are <br />considered 50% hardscape. <br />c. The assigned canopy coverage value of each tree is based on planting location, tree size <br />and anticipated tree canopy size 15 years after planting. The assigned canopy cover <br />value to each deciduous tree is described in the following table and illustrations: <br />Planting Location <br />(for new trees) <br />Interior parking <br />lot islands <br />Within less than 7 of <br />vehicular hardscape <br />edge <br />7' -12' from <br />vehicular <br />hardscape edge <br />Assigned Canopy Coverage <br />Value <br />100% of the <br />canopy square <br />footage <br />50% of the canopy <br />square footage <br />25% of the <br />canopy square <br />footage <br />y ,_ * <br />,°mRa <br />L, 1. v L <br />t > c - <br />• ; <br />Large Tree <br />1200 SF, or 950 <br />SF per tree in <br />islands with 1 or <br />2 trees <br />600 SF <br />300 SF <br />w v° 0 <br />'� a c 'a <br />Medium Tree <br />500 SF <br />250 SF <br />125 SF <br />�' <br />in <br />Small Tree <br />250 SF <br />125 SF <br />NA <br />Existing Tree: <br />6 — 12" dbh <br />1900 SF <br />950 SF <br />NA <br />Existing Tree: <br />12+ "dbh <br />2850 SF <br />1425 SF <br />NA <br />d. Existing trees may be used to fulfill canopy coverage as described in Section 9 when the <br />dripline has proximity to the edge of the hardscape; therefore, existing trees do not need <br />to be within Tess than 7' feet of the vehicular hardscape edge. <br />• <br />