Mater Dei School Educational institution School at Wivenhoe estate in Cobbitty established by the Sisters of the Good Samaritan. Milestone Opened 1957 {"name":"Opened","target":"","target_text":null,"date":{"#markup":"<span class='date'>1957<\/span>"},"date_start":"1957","date_end":"1957"} Property Occupied Wivenhoe estate {"name":"Occupied","target":"Wivenhoe estate","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Type Educational institution {"name":"Educational institution","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}