Within thirty (30) days after an application for issuance of a conditional use permit is filed with the City Clerk, the Planning and Zoning Commission shall hold a public hearing on whether to grant or deny the application, unless the applicant consents to a later hearing. Notice of the date, time and place of such hearing shall be published once in a paper of general circulation in the City at least fifteen (15) days prior to the hearing. In addition, the City Clerk shall, on or before the date of publication of the notice in a paper of general circulation, deliver written notice of the date, time and place of the hearing to the applicant and to all owners and occupants of real estate located in full or in part within one hundred eighty-five (185) feet of any of the boundaries of the subject property. Any mailed notice shall be delivered to the last known address of the addressee. The written notice shall be delivered by certified mail, return receipt requested, or by the City Clerk or his or her designee handing the notice to the person to be given notice or to a member of that person's family over the age of fifteen (15) years, at that person's dwelling or usual place of abode. Notice by certified mail shall be considered delivered on the date the envelope is mailed.