From 25 September 2012 the UKBA visa application centre in Johannesburg will be moving to new premises within Sandton City.
The new address is:
UK Visa application centre (VFS)
Sandton City Mall,
Corner Rivonia Road and Sandton Drive,
VFS Global will be operating from that new premises from 25 of September 2012 for the submission of UK visa applications. There will be signage throughout the mall directing applicants to the new offices within Sandton city.