In the event that a public hearing is held, notice shall be mailed to the subdivider and to the owners of all property within 500 feet of the exterior boundaries of the property involved at least 10 days prior to the date of the hearing. The last known name and address of each owner as shown on the records of the County Assessor may be used for the aforementioned notice. In the coastal zone, notice shall be given at least 10 calendar days before the public hearing of the time, date, and place of such hearing, including a general description of the area to be affected, and the street address, if any, of the property involved. Said notice shall be published at least once in a newspaper of general circulation in the City. In addition, notice of the hearing shall be given by mail or delivery to all persons, including businesses, corporations, or other public and private entities, shown on the last equalized assessment roll as owning real property within 500 feet of the property that is the subject of the proposed change, as well as all residents within 100 feet of the property which is the subject of the proposed change, the California Coastal Commission, and any person who has filed a written request with the Director of Development Services. Such a request may be submitted at any time during the calendar year and shall apply for the balance of the calendar year. A reasonable fee may be imposed on persons requesting such notice for purpose of recovering the cost of such mailing. Substantial compliance with these provisions shall be sufficient, and technical failure to comply shall not affect the validity of any action taken pursuant to the procedures of this chapter or the certified local coastal program. (Ord. 3256 § 1 (Exh. B), 2013; Ord. 3153 § 2 (Exh. C), 2010; Ord. 2100 § 1, 1985. Formerly 18.12.105).