11 Diagonal Street Johannesburg was completed 1984 to a height of 80 metres. It is designed by Helmut Jahn to look like a diamond as it reflects different views of the Johannesburg Central Business District from each angle of the building.
11 Diagonal Street Johannesburg was completed 1984 to a height of 80 metres. It is designed by Helmut Jahn to look like a diamond as it reflects different views of the Johannesburg Central Business District from each angle of the building.