The service of such order to remove or remedy dangerous conditions may be made upon the owner or occupant of the premises to whom it is directed, either by delivering such order to the owner or occupant personally or by delivering such order and leaving it with any person of suitable age and discretion in charge of the premises, or in case no such person is found upon the premises, by affixing a copy there of in a conspicuous place on the door to the entrance to such premises.
('88 Code, Title IX, Ch. 113, § 9.173)