In addition to any public notice required by this article, the City Manager shall cause to be posted at one or more prominent and easily visible places on the property which is the subject of the hearing, on eighteen-inch by twenty-four-inch yellow cardboard, a public notice setting forth the date and time at which the Board of Adjustment has scheduled the hearing, the name of the party who has requested the hearing, the application number assigned to the hearing request, a description of the property involved, and a statement, in plain language, of the nature of the matter involved. The notice shall also list the address and telephone number of the City’s Building and Licensing Department for interested parties seeking further information on the hearing. One such notice sign shall be posted for each street and/or boardwalk on which said property fronts. It shall be the responsibility of the party who has requested the hearing, and not the responsibility of the City, to maintain the notice signs in good condition during the posting period. Said notice sign or signs shall be posted at least 15 days prior to the hearing and shall remain posted until the Board of Adjustment has taken a final action upon the requested hearing.