The Board of Appeals shall decide each appeal within 60 days. Upon the hearing, any party may appear in person or be represented by an agent or attorney. The Board of Appeals decision shall be immediately filed in its office and be a public record. In the exercise of its functions upon such appeals or upon exceptions, the Board of Appeals may, in conformity with the provisions of this chapter, reverse or affirm, wholly or partly, or modify the order, requirement, decision or determination appealed from or may make such order, requirement, decision or determination in accordance with the provision hereof.