Agenda - Council - 10/09/2007 - Laserfiche WebLink

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Preliminary .Plat and Site Plan Review: Ebony Woods August 31, 2006 Revised: September 22, 2006; December 20, 2006; April 5, 2007; October 4, 2007 Page 6 of 7 September 24, 2007, does not include additional boulevard trees and shrubs between the buildings as discussed by Council, it has been revised to include two rain gardens between the buildings and the road as well as some foundation plantings at the front corner of each unit. The following additional comments are offered regarding the September 24, 2007 landscaping plan: • Additional native perennial plants, including .forbs, grasses and/or sedges should be included in the rain gardens. This can increase their attractiveness, reduce or limit encroachment of weeds, and provide more functionality due to their deeper root systems. • The rain gardens should be mulched with a couple inches of fibrous shredded wood chips (the garden areas should not include sod). • The rain gardens should be at least ten (10) to fifteen (15) feet from the buildings to avoid water infiltrating the building foundations. • Deciduous trees shall have a caliper of at least 1 inch and coniferous trees shall be at least five (5) feet in height at installation. This should be indicated in the planting schedule. • All areas not otherwise improved in accordance with the approved site plan must be sodded. The proposed irrigation. system will need to be reviewed by the City Engineer. The irrigation system will need a dedicated service(s) that must be shown on the utility plan. Please submit details regarding the utilities for such a system. 21. Density Transitioning: Density transitioning is required along the eastern boundary of the site. Existing vegetation within the tree preservation area, coupled with the addition of six (6) hackberry trees, appears to satisfy the transitioning requirement. However, the addition of the two rain gardens required the buildings to be shifted about thirty (30) feet to the east. This shift ultimately results in about twenty -five (25) fewer trees being preserved than indicated on previous plans. Due to this, some additional plantings should be considered in this area, especially on lots 3 & 4.. Suitable species would include, but are not limited to, American Elder (Sambucus canadensis), Beaked Hazelnut (Corylus cornuta), Ironwood (Ostrya virginiana), Black Maple (Acer nigrum), and Mugo Pine (Pinus mugo) On the lot to the south, Lot 1 Block 1 Clemens 2 Add, which was vacant when this application was originally received, a single family home is now being constructed. While density transitioning may not specifically apply (due to that site's status when this application was received) Staff is recommending either additional landscaping and/or a privacy fence be installed along this common boundary line. If additional trees /shrubs are installed, they should be situated near the property line but west (in front) of the proposed building, due to a lack of adequate growing space directly adjacent to the building site. Suitable species would include, but are not limited to, Autumn Brilliance Serviceberry (Amelanchier x grandjora), Shadblow Serviceberry ( Amelanchier Canadensis), Balsam —179—