In 1939 additional buildings became available for the dining hall and domestic science and in 1973 the Lady Julian Building, which had formerly housed its prep department, became part of Notre Dame High School. The prep department later became separate and is now an independent school.
In 1939, additional buildings were added to the dining hall and domestic science facilities at the school. In 1973, the Lady Julian Building, previously used by the preparatory department, became part of Notre Dame High School. The prep department later split off and now operates independently as a separate institution.