In all districts, the Board of Standards and Appeals may permit a waiver of, or a reduction in, the number of required accessory off-street parking spaces for houses of worship, provided:

(a)        the house of worship will be operated or utilized in such a manner as to reduce demand for on-site parking; and

(b)        such reduction is commensurate with the reduced demand for on-site parking.

Factors to be considered by the Board may include, without limitation, the size of the congregation, the frequency and time of worship services and other events, and the proximity of public transportation. The Board may impose appropriate conditions and safeguards to minimize adverse effects on the character of the surrounding area.