When any lot, building, or structure within the City, because of accumulation of refuse or debris, or age or dilapidation, or because of any other condition or happening becomes, in the opinion of the Council, a public hazard or nuisance which is dangerous to the health, safety, or welfare of the inhabitants of the City or of those residing or habitually going near such lot, building, or structure, the Council may, after investigation, give notice by publication or by registered mail addressed to the last known address of the owner or owners of the land upon which such nuisance exists, or to the owner of the building or structure itself, specifying the nature of the nuisance and requiring such owner to abate or remove the nuisance promptly and within a time to be specified by the Council, which shall be commensurate with the nature of the nuisance. If at the expiration of the time limit in said notice, the owner has not complied with the requirements thereof, or in any case where the owner of the land or of the building or structure itself is not known, the Council may order such hazard or nuisance abated by the proper department or agency of the City, or may do the work by contract or by hire, and the cost of such abatement shall be assessed against the lot, premises, or description of real property upon which such hazard or nuisance is located by special assessment.
The Council shall determine what amount or part of each such expense shall be charged, and the person, if known, against whom, the premises upon which the same shall be levied as a special assessment; and as often as the Council shall deem it expedient, it shall require notice of all of the several amounts so reported and determined to be given by the Clerk either by registered mail sent to their last known address as shown on the assessment roll of the City, or by publication. Such notice shall state the basis of the assessment, the cost thereof and shall give a reasonable time, which shall not be less than thirty days, in which payment shall be made. In all cases where payment is not made within the time limit, the same shall be reported by the Clerk to the Assessor who shall spread such amounts against the several persons or descriptions of real property chargeable therewith on the next roll for the collection of City taxes.