One Canada Square of London."" One Canada Square was originally designed to be high at 55 storeys, but that penetrated the permitted projection height of the flight obstruction area of the airport approach district to London City Airport, but this was extended to a height of above kerb level in consideration of the fact that One Canada Square was on the external zone of the airport approach. To comply with air traffic safety regulations, the architects took five floors off the tower. The final height of was permitted, otherwise, the developers would have had to dismantle what was necessary to fit the height
5 Canada Square with 25 Canada Square, another Canary Wharf building, for a total of £1.1 billion from Canary Wharf, a major property firm that developed the facility. 5 Canada Square was originally leased by Credit Suisse First Boston but after a banking downturn and not needing the space, Credit Suisse let the space to Bank of America. In July 2007, the building was sold by RBS to Evans Randall, a banking firm, for £452 million, making it the firm’s largest UK investment to date. In 2011, Bank of America chose to renew its lease at 5 Canada Square instead of move to