The following parties shall be notified of a hearing by the commission by mail prior to the date set for the hearing, but a failure to meet this requirement shall not invalidate any permit granted thereafter:
All of those parties who are entitled to receive a copy of such application in accordance with Section 47-27-13 of this chapter; and
All known present owners of record of adjacent land as reflected by current tax assessment rolls and all known claimants to water or riparian rights in or adjacent to the coastal wetlands affected.