<P> This list of the tallest buildings and structures in London ranks skyscrapers, towers and other structures in London by their height . Since 2010, the tallest structure in London has been The Shard, which was topped out at 310 metres (1,017 ft), making it the tallest habitable building in Europe at the time . The second tallest is One Canada Square in Canary Wharf, which rises 235 metres (771 ft) and was completed in 1991 . The third tallest is the Heron Tower in the City of London financial district, which was topped out in 2010 and stands at a height of 230 metres (755 ft), including its spire . </P> <P> The Greater London metropolitan area contains the most skyscrapers in the European Union . As of 2018, there are 21 skyscrapers in London that reach a roof height of at least 150 metres (492 ft), with 18 in the Paris Metropolitan Area, 15 in Frankfurt, eleven in Warsaw and five each in Madrid and Milan . </P>

What is the name of the tallest building in london