The Heron Tower (officially Salesforce Tower London) is a commercial skyscraper in London. It stands 230 metres (755 ft) tall including its 28 metre (92 ft) mast (202 metres (663 ft) excluding the mast) making it the tallest building in the City of London financial district and the third tallest in Greater London, after The Shard in Southwark and One Canada Square at Canary Wharf. The Heron Tower is located on Bishopsgate and is bordered by Camomile Street, Outwich Street and Houndsditch.
Construction of the building started in 2007 and was completed in 2011. It is owned by Heron International and in May 2014 a 15-year naming Deal renamed the building as the Salesforce Tower, after the tenant Salesforce.com, which occupies six floors and 18% of the building's total office space. The tower initially struggled to attract tenants in the depths of the Great Recession, but is now 90% leased or under offer.