Single- and two-family houses shall comply with the regulations set forth in this chapter in Article
IV, Residence A District, with respect to lot size, front yard, side yard, rear yard and corner plot setbacks, and building height and area. Hospitals, colleges, universities, professional medical buildings and nursing homes shall comply with the same lot size, front yard, side yard, rear yard and corner lot setbacks and building height and area regulations as required for apartment houses as set forth in Article
V, Residence B District. In addition to the setback requirements as contained herein for any use other than those uses permitted in a Residence A District, a forty-foot buffer zone shall be provided and maintained in its natural state, between such usage and any adjoining Residence A District.