One Canada Square Canada Square was completed and open for business. His Royal Highness The Duke of Edinburgh officially opened One Canada Square on the morning of 26 August 1991, and unveiled a commemorative plaque at the entrance to the building. Hundreds of construction workers attended the opening ceremony. The Duke of Edinburgh addressed some 800 invited guests, many of whom had been involved in the project. He spoke of the "large, airy space and clean, efficient office layout", as he declared the building ready for business. The attendees heard a specially-commissioned piece of music performed by a 30-strong choir. Paul Reichmann, Chairman
Citigroup Centre, London both Canada Square and Upper Bank Street, Citigroup Centre is also accessible via underground walkways from Canada Place shopping mall and Canary Wharf London Underground station - served by the Jubilee line. The Centre is also close to DLR stations Canary Wharf and Heron Quays, which provide connections with the City, London City Airport and surrounding areas. Citigroup Centre, London The Citigroup Centre is a building complex in London. It houses Citigroup's EMEA headquarters and is located in Canary Wharf in the city's Docklands. The centre provides of floor space across two merged buildings - 33 Canada Square (known as