The assessment for the cost of the construction or maintenance of any sidewalk, or the abatement of any hazard or nuisance, to be made pursuant to Section 2.2(18) or Section 2.2(19) shall be made by resolution of the Council. Notice of the time at which the Council will act thereon shall be given by publication, and sent by registered mail to all property owners of the property, constituting or creating such nuisance or hazard, as shown by the current tax roll of the City, but failure of any owner to receive such notice shall not invalidate any such assessment. For the purposes of collection of such assessment, the adoption of such resolution shall be equivalent to the confirmation of a special assessment roll. The amount of any such assessment shall become a debt due to the City upon adoption of such resolution, be payable and subject to the collection fees, and shall become a lien, all as provided in Section 11.7.