Christ Church Cathedral Memorial Hall is a two-storey stone Gothic Revival building which includes an auditorium, classrooms for Sunday School, a work room, guild room, recreation hall and synod office for the church. The Memorial Hall was completed before construction of the Christ Church Cathedral (which the hall was originally meant to be connected to) began, and was intended for use as a church hall. It was designed by architect John Charles Malcolm Keith. The hall was used for church functions and offices from 1923 until it was converted to an independent religious school, Christ Church Cathedral School, in 1989. It is dedicated to the memory of those who had fallen in the First World War.