Each notice of hearing upon an application for site plan review, a special use permit, or for the review of a variance application upon an appeal to the Zoning Board of Appeals, or any other public hearing, shall be published once in the official newspaper of the Town at least five days prior to the date of the hearing. In addition, at least 10 days prior to the date of the hearing, notices shall be mailed to the applicant and to all owners of property within 250 feet of the exterior boundary of the property for which the application is being made, as may be determined by the latest assessment records of the Town.