Whenever any work is done or improvements are made by the city under the provisions of this article and the address of the owner of the premises is unknown or such owner fails to pay the cost within 30 days after receipt of the statement of expenses, the city attorney, upon behalf of the city, shall file a statement of expenses incurred thereby and a notice of lien, which statement and notice will constitute a privileged lien on any lot or real estate upon which work was done or improvement made to secure the expenses thereof.
(1972 Code, sec. 15-64; Ordinance 379 adopted 4/17/1990; 1995 Code, sec. 94.18)