One Canada Square was completed. It is expected to become the third tallest building in the United Kingdom in 2019 upon completion of 22 Bishopsgate. One Canada Square never achieved the title as tallest skyscraper in the European Union because in accordance to the CTBUH method, a building has to be "completed" before its receives its title, with Messeturm in Frankfurt being completed in 1990. On 15 November 1992, the Provisional Irish Republican Army attempted to place a large improvised explosive device near the tower. The IRA had already worked out that to cause maximum damage, the bomb had to be placed under
1 Cabot Square 1 Cabot Square 1 Cabot Square (also known as the Credit Suisse building) is a 21 floor office building occupied by Credit Suisse in the Canary Wharf development in London, England. Original plans called for a skyscraper on this site for CSFB, however the slump at the end of the 1980s saw these plans scaled back. The architect on the project was Pei Cobb Freed & Partners, and the building was completed in 1991. It is 89 metres tall with a floorspace of 50,166 square metres. The building has large, open plates on the floor that range in size from