24-551 - Required side setbacks for tall buildings in low bulk districts LAST AMENDED 2/2/2011 R1 R2 R3 R4 R5 In the districts indicated, except R5D Districts, no #community facility# portion of any #building# that is more than 35 feet or more than three #stories# above the level of a #side yard#, whichever is lower, shall be nearer to a #side lot line# bounding such #yard# than a distance equal to one-half the height above yard level of such portion of the #building#. The following are permitted to project into any open area required under the provisions of this Section: (a) parapet walls, not more than four feet high; and (b) chimneys or flues, with a total width not exceeding 10 percent of the width of the #building's# walls facing such open area. SIDE SETBACK REQUIREMENT