South Bank Tower (formerly King's Reach Tower until 2013) is a high-rise building in Stamford Street, Southwark, London. It was originally a thirty storey structure 111 metres high and was completed in 1972, designed by the architect Richard Seifert and built by John Laing Construction Limited. In recent years, the tower has undergone extensive redevelopment and a height increase. The tower is similar in design to Tower 42, which was designed by the same architect.