The Board of Adjustment shall act on the appeal within 20 days following the closing of the public hearing. In exercising the powers set out in this section, the Board of Adjustments may, in conformity with the provisions of this Ordinance, reverse or affirm, wholly or partly, or may modify the order, requirement, decision or determination as ought to be made, and to that end shall have all the powers of the Director of Planning and Building from whose action the appeal is taken. The Board shall notify the applicant of its decision.

The concurring vote of four members of the Board of Adjustment shall be necessary to reverse any order, requirement decision, or determination of the Director of Planning and Building or to decide in favor of the applicant any matter upon which it is required to pass under this subsection.