If elderly housing units are part of a facility which provides a continuum of care services, that is, a facility providing support and care options at various levels, including residential supportive housing, retirement living, personal care and nursing care as licensed by the Commonwealth of Pennsylvania, all of which are in close proximity (if not attached) and located upon one plot (or a combination of contiguous lots) not divided by public street(s) or by any other use, then the maximum density may be increased to 36 dwelling units per acre, provided that the requirements of Subsection B(5)(f) below are met.