South B is an estate based in Makadara Division in Nairobi, Kenya. It consists of middle class houses ranging from the tiled roofed Plainsview Estate to the mabati roofed Mariakani Estate. It is famed for its number 11 matatus (Minibuses - Public Transport PSVs). It has a shopping centre and Capital centre Mall. The houses there are in high demand due to its closeness to the Nairobi Central Business District. South B is located north of the South C estate.