A pool structure, which includes all pool edge caps, mechanical equipment and other parts which are appurtenant and integral or essential to the pool's construction, operation and use, except patio, fencing or decking associated therewith, shall comply with yard requirements for principal structures except that on any lot located in the R-20(V) zone and any corner lot as defined in subsection 16-4.2 located in an R-65 zone, such structures shall be permitted with a side or rear yard depth of 10 feet provided a five-foot wide landscape buffer area consisting of evergreen plantings of no less than six feet in height is provided in the side or rear yard to create a visual barrier to adjacent lots.