To provide for the establishment, within residential areas, of a specialized, for-profit congregate residential development for the elderly. In such development, accommodation can be made for the range of needs of those elderly who do not want or need placement in a hospital or nursing home. Eldercare communities shall be designed to achieve compatibility with their surroundings and to encourage orderly and well-planned development. Eligible sites shall be limited to those analyzed and found suitable in the comprehensive planning and environmental review processes undertaken at the time of creation of this zoning district. Such development shall be of a scale and location that will make it feasible to construct a comprehensive package of supporting utilities, services and facilities, so as to achieve development which is environmentally, physically, visually and economically sound. Certain accessory uses that are requisite, desirable and convenient for congregate living for the elderly will also be allowed.