The following criteria shall be used in considering a special use application by the Planning Commission and Council:
(a) The special use is necessary or desirable for the public convenience at that location.
(b) The special use is so designed, located and proposed to be operated that the public health, safety and welfare will be protected.
(c) The special use will not cause substantial injury to the value of other property in the neighborhood in which it is to be located.
(d) The special use conforms, with the exception of planned developments, to the applicable regulations of the district in which it is to be located, including yard and height restrictions, and also conforms to the requirements for off-street parking and loading facilities as set forth in Chapters 1157 and 1159.