In C1 or C4 Districts, the Board of Standards and Appeals may permit funeral establishments provided that the following findings are made:
(a) that there are serious difficulties involved in locating within a district wherein such use is permitted as-of-right and from which it could serve the needs of its prospective clientele, which make it necessary to locate such use within a C1 or C4 District;
(b) that the site for such use is so located as to cause minimum interruption of the continuity of the frontage devoted to retail shopping uses. In determining whether the use will cause only minimum interruption of such retail frontage, the Board may make a favorable finding on the ground that there exists a substantial number of other incompatible uses interrupting such frontage within 200 feet on either side of the proposed site (not including land in streets); and
(c) that such use is so located as to draw a minimum of vehicular traffic to and through local streets in residential areas.
The Board may prescribe appropriate conditions and safeguards to minimize adverse effects on the character of the surrounding area.