Date1905 - PresentLocationSchool HallDescriptionThe School Hall was built in 1905 and was the first 'purpose built' building at Diocesan. It was renovated numerous times over the years including once in 1949 where the covered hallway was built as a memorial to fathers, brothers and friends of the school killed in World War II. In 1981 new Honours Board were installed while the Founder's Portraits were added in 1995. One of the biggest renovation occurred in 2003 when the remains of the old corridors and cloakroom (added in 1964) were removed to make way for the new Cafeteria and new honours' foyer.
As of 2024, it is still used for various activities and is one of the oldest buildings on campus.