Section 20-33 Service of Orders or Notices

(a) The service of orders or notices for the correction of violations of this article shall be made upon the owner, occupant or other person responsible for the conditions, either by personally delivering a copy of same to such person or by delivering the same to and leaving it with any person in charge of the premises or by sending a copy of the order or notice by certified or registered mail to the owner's last known address.

(b) When buildings or other premises are occupied by one other than the owner under a lease or other agreement, the orders or notices issued to correct violations of the Code shall apply to the occupant thereof provided that where the order or notices require the making of additions to or changes in the premises themselves which may become part of the real property of the owner, then in such cases, the orders or notices shall also be issued to the owner of the premises or real property. Failure to deliver an order or notice to the owner, if other than the occupant, shall not invalidate such order or notice.