Awesome thread! I know the cities in Africa are some of the fastest growing in the world since people are moving in from the country. Also, my hats off to those proposals! I'm really lovin' the Tanzania House. I'd love to go to Nairobi someday hopefully sooner than later and see how it's continuing to modernize more and more...
Aside from the Torre de Angola, I could see Africa's first supertall being built in either Nairobi or Johannesburg more than likely. Within the next ten years, or if it has started already for that matter, I can pretty much guarantee that cities throughout Africa will begin to modernize and join the race to build tall as they become economic engines more so as time goes on.