Mater Dei Catholic (MDCHS) is a private, Roman Catholic TK-12 school in Chula Vista, California, United States. It is located in the Roman Catholic Diocese of San Diego. In 1960, Bishop Charles F. Buddy founded the first co-educational Catholic high school in the Diocese of San Diego. It would be built on twenty acres of land donated by Mr. and Mrs. Robert Egger. Seventy young students and a faculty of four embarked on a lasting venture which was to become known as Marian High School. These boys and girls carried the hopes and best wishes of many people as they attended classes in a three room division of St. Charles School across the street from what would be the future campus. In 2002, the Diocese of San Diego decided to upgrade all of its secondary campuses. A new site in Chula Vista w