11_diagonal_street | location | south_africa <tsp> south_africa | leadername | jacob_zuma <tsp> south_africa | ethnicgroup | coloured <sep> 11 diagonal street is an office tower in johannesburg, south africa it was built in 1983 to a height of 80 metres it is designed to look like a diamond as it reflects different views of the central business district from each angle of the buildingthe building's architect was helmut jahn 
11 diagonal street is located in south africa. a country in which coloureds are one of the ethnic groups and jacob zuma is the leader.11 diagonal street is an office tower in johannesburg, south africa