The City shall hold a public hearing on all variances, conditional use permits, site plan applications (unless administratively approved pursuant to City Code Section 11-2-4.E), text amendments, map amendments and interim use permits. Notice of the public hearing shall be given not less than ten (10) days nor more than thirty (30) days prior to the date of the hearing by publication in the designated legal newspaper of the City. The notice shall contain the date, time and place of the hearing and a description of the land and the proposed application. At least ten (10) days before the hearing, the City Clerk shall mail a notice to the owner and to each of the property owners within five hundred feet (500') of the property for which the approval is sought. Failure of the City Clerk to mail the notice or failure of the property owners to receive the notice shall not invalidate the proceedings.