From the main roundabout to the north of the station, take the Stamford Street exit and then first left into Cornwall Road. The IBM building faces you at the end of Cornwall Road. There are public car parks close to South Bank, but they can be expensive. Meter parking is also available in the streets nearby. London's other mainline stations are within fifteen minutes by London Underground to Waterloo station.
Tube maps are available from most underground stations.
The Northern line has two branches, so make sure the train you board is going to Waterloo. The Waterloo and City line links Waterloo to Bank station on the Central line. On foot from the stations Walking from the stations is straightforward , though you may prefer to take a taxi. IBM's South Bank building is located between the Royal National Theatre and the London Weekend Television Studios. From Waterloo, follow the signs from the station for the South Bank.