Photo forwarded to me by swannie52 (www.flickr.com/photos/27884513@N02/). From the text he sent me:
"St. Joseph's College (Marist Brothers) in Belmont Road occupies "Belmont", which during the 19th century was one of the best-known gentleman's estates in Rondebosch, having from 1835 belonged first to J. Bardwell Ebden and subsequently to his son Alfred Ebden. It was purchased by Marist Brothers in 1917. In this house the Transvaal delegates to the National Convention were housed in 1909-including Generals Botha and Smuts. St. Joseph's College was started in Cape Town in 1867 as a fee-paying private school with 9 pupils. There were 100 pupils at the time of the move in 1918. Subsequently a classroom block, a chapel and other tuition and hostel buildings were erected, as well as new dining rooms, gymnasium and a swimming bath. The school has grown very much so that by 1955 there were about 600 pupils of whom about one fifth were boarders."