26 Pierneef Street, Vorna Valley, Midrand, Gauteng. Off at Allendale offramp (N1 to Pretoria, keep left and go through first traffic lights), turn right at Harry Gallaun Str (2nd traffic lights on Allendale Rd), down past a stop street, turn left at next traffic light into Anton Hartman Street, take the first street left into Chris Barnard Street and take first right into Pierneef Street.