In all Residence Districts, the Board of Standards and Appeals may permit telephone exchanges or other communications equipment structures listed under Use Group IV(B), provided that the Board finds that:

1. such use will serve the residential area within which it is proposed to be located; and
2. there are serious difficulties in locating it in a district wherein it is permitted as of right and from which it could serve the residential area, which make it necessary to locate such use within a Residence District.

The Board may prescribe appropriate conditions or safeguards to minimize adverse effects on the character of the surrounding area, including requirements that such use shall be landscaped.