Within the senior citizen district, certain related ancillary facilities may be permitted, either in a separate building or in combination with dwelling units, such as, but not limited to, cafeterias, self-service laundries, lounges, game rooms or workshops, to the extent that they meet the needs of the occupants of the development. Such facilities shall be subordinate to the residential character of the development and shall be located out of public view with no outside advertising. Such facilities shall be approved by the Planning Board. Approval of a conditional use and site development plan for dwelling units in a senior citizen affordable housing development in no way constitutes approval for installation of any type of related facility.