If the owner fails to remedy a prohibited condition after notice by the Director of Inspections or the Director of Public Services, the Director of Public Services shall thereupon remedy the condition or abate the nuisance or cause the same to be done by personnel of the City or outside personnel, if necessary. Upon completion of such work, the Director of Public Services shall determine the reasonable cost thereof and bill the owner therefor. Upon failure of the owner to remit to the City Treasurer the amount of such charge within thirty days from the date of such notice, the amount of the bill shall be certified to Council, who, pursuant to Section 157 of the City Charter, shall order such charges transferred to the miscellaneous special assessment roll to become a lien upon the property, which lien may be enforced in the any manner allowable under the law.