11_diagonal_street | location | south_africa <tsp> south_africa | capital | cape_town <tsp> south_africa | leadername | cyril_ramaphosa <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 
the address. 11 diagonal street is located in south africa. which has cape town as its capital. cyril ramaphosa and jacob zuma are leaders of south africa. where coloured people are an ethnic group.11 diagonal street is an office tower in johannesburg, south africa