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UPTOWN D2 DISTRICT FORM-BASED CODE January 26, 2016 <br />506. Private Open Area <br />A. At least 1 tree per 800 square feet of any at-grade required private oPEN AREA shall be planted <br />in the rear lot area and located no closer than five feet to any coMMON LoT LINE. Exceptions: <br />General and Workshop frontages and sites that are reusing existing structures with no ground <br />level OPEN AREA are exempt from this requirement. <br />B. Trees must be at least two inches in diameter at DBH and eight feet in overall height (at time of <br />planting). Species must be selected from these Tree Lists). Exceptions: General and Workshop <br />frontages and sites that are reusing existing structures with no ground level OPEN AREA are <br />exempt from this requirement. <br />507. Tree Lists <br />A. General <br />1. The following lists contain all approved tree species for use in an urban neighborhood. The <br />lists include native and acceptable adapted species. Other species may be used for <br />planting within a private lot. <br />2. Invasive exotic species may not be used anywhere on private lots or other areas. <br />B. Street Trees <br />1. Species in the STREET TREE list are for placement as shown in street type specifications, or as <br />SpeClfled In the REGULATING PLAN for placement along the STREET TREE ALIGNMENT LINE. The USe Of <br />alternate species may be permitted, but Only If apprOVed by CODE ADMINISTRATOR. <br />2. STREET TREES are part of an overall STREET-SPACE plan designed t0 provide both canopy and <br />shade and to give special character and coherence to each STREET-SPACE. The desired <br />aesthetic must be achieved through the use of native and/or proven hardy adapted <br />species. Appropriate srREEr TREE list species may grow and change over time. Inclusion in this <br />list must be based on the following criteria: <br />a. Structural -STREET TREES shape and subdivide the STREET-SPACE, increasing pedestrian <br />comfort and adding (literal) value to the street/ community. "Canopy Shade Tree" <br />species grow to heights in excess of 60 feet and have a broad canopy-enabling them <br />to clear auto traffic and pedestrians, form aceiling-like enclosure, and open a clear <br />view of the srREEr-SPACE and storefronts at eye-level. <br />b. Pragmatic -Life as a typically placed srREEr TREE is nasty, brutish, and typically short. Few <br />species are tough enough to survive and grow. Appropriate species have special <br />tolerance to salt and soil compaction. STREET TREE planting techniques and <br />configurations provide a healthy environment in which the tree can thrive-this will <br />ensure that the trees increase the community value as they grow. <br />c. Design -Species are planted consistently along a given sTREEr-SPACE to provide a special <br />form and character. This provides species diversity at the same time it provides a <br />specific street character by planting different srREEr-sPACES with different trees. <br />43 <br />