Tower 42

Tower 42 was the tallest in the City of London. It was originally built for the National Westminster Bank (NatWest), hence its former name, the NatWest Tower. Seen from above, the tower closely resembles the NatWest logo (three chevrons in a hexagonal arrangement). The tower, designed by Richard Seifert and engineered by Pell Frischmann, is located at 25 Old Broad Street. It was built by John Mowlem & Co between 1971 and 1979, and opened in 1980. It is 600 feet high, which made it the tallest building in the UK until the topping out of One Canada Square in Docklands in 1990. It held the status of tallest building in the City of London for 30 years, but lost the status in December 2009 when Heron Tower overtook it in height. Heron Tower will top out at 246m.