(a) The Board shall have the authority to interpret the Zoning Code in such a way as to carry out the intent and objectives of same when an application is filed to determine the meaning and intent of any wording or provision of the Zoning Code.
(b) The Board shall have the power to hear and decide appeal when it is alleged by the appellant that there is error in any order, requirement, decision, determination, grant or refusal made by an administrative official, except determinations of the Planning and Zoning Commission, in the enforcement and interpretation of the provisions of a Zoning Code.
(c) The Board shall have the power on appeal in specific cases to vary the application of certain requirements or provisions of the Zoning Code as will not be contrary to the public interest where, owing to exceptional condition, the literal enforcement of the provisions of the Zoning Code will result in practical difficulty or unnecessary hardship, depending upon the type of variance sought by the applicant.
(d) The powers hereby granted shall not extend to the changing of zoning classifications of any lot or parcel of land under the district classifications fixed by the Zoning Code or the Zoning Map, or to the authorization of any use which is not a permitted use authorized by the Zoning Code for the district in which such land is situated.
(1969 Code 150.404)