Accessory Buildings and Structures Not to Be Constructed Prior to Principal Building. No construction permit shall be issued for the construction of an accessory building or structure, other than construction trailers, storage sheds or farm accessory buildings prior to the issuance of a construction permit for the construction of the main building upon the same premises. If construction of the main building does not precede or coincide with the construction of the accessory building or structure, the Construction Official shall revoke the construction permit for the accessory building or structure until the construction of the main building has proceeded substantially toward completion.