If the owner or occupant fails, neglects or refuses to obey any order, issued under the provisions of the preceding section, or if the premises are unoccupied, and the owner or his or her agent cannot be found, the director of the department of public health shall abate or remove such nuisance and shall defray the expenses thereof out of any moneys in the city treasury available for such purposes. All expenses so incurred shall be charged against the owner and shall be a lien on the lot and premises whereupon such nuisance exists.
(1964 Code, § 19-400)