The notice, in form and content as required by Section 21.15.050, shall be served by the following method:
By posting the notice at a conspicuous place on the land, or upon the premises, or upon any structure thereon, or upon the abutting public right-of-way; and
By sending a copy of the notice by certified mail addressed to the owner or other person in charge or control of the property, at the address shown on the last available assessment roll. The notice shall be placed in the United States mail, postage prepaid, and shall be deemed served upon placing in the United States mail, postage prepaid.
(Ord. 624 § 4 (part), 2008).