I came across a website today called Eprop. They are specialists in online commercial property in South Africa dealing with Office, Retail and Industrial property sectors.
I'd heard of them before but never realised they were so big...
They apparently have more than 15 000 visitors to this site on a constant basis and are the biggest commercial property marketplace in South Africa.
If anybody has more information regarding this company, possibly who they're owned by and how long they've been going for let me know.