Any person directly affected by a decision of the Code Official, or a notice or order issued under this Code shall have the right to appeal to the Board of Appeals, provided that a written application for appeal is filed within twenty (20) days after the day the decision, notice or order was served. An application for appeal shall be based on a claim that the true intent of this Code or the rules legally adopted thereunder have been incorrectly interpreted, the provisions of this Code do not fully apply, or the requirements of this Code are adequately satisfied by other means. (111.1)