Any permit issued hereunder is subject to suspension or revocation by the Board of Mayor and Aldermen after notice to the permittee and public hearing on any of the following grounds:
(A) The owner or agent of the real property has withdrawn his or her consent;
(B) Conditions concerning the real property covered by the permit have changed so that conditions exist which would be grounds for refusal to issue the permit;
(C) The permittee has violated any of the terms or conditions of the permit or any law while on private or public property pursuant to the permit issued herein.
(`83 Code, § 12-307)