One Canada Square pinnacle is above sea level. One Canada Square is primarily used for offices, though there are some retail units on the lower ground floor. There is no observation floor. It is a prestigious location for offices and as of October 2017 was 100% let. The building is recognised as a London landmark, and it has gained much attention through film, television, and other media as one of the tallest buildings in the United Kingdom. The original plans for a business district on Canary Wharf came from G Ware Travelstead. He proposed three 260 m (850 ft) towers. Travelstead was unable
Asia Square wealth fund, has agreed to purchase the building for S$3.4 billion. Citi is the anchor tenant for Asia Square Tower 1, giving Citi the right to external signage on the building. Tower 1 houses Citi Asia Pacific, Citi Singapore headquarters and Citi Private Bank. Other Tower 1 tenants include the global investment bank New State Corporation, the Taipei-based Global Financial Services Group CTBC Bank at #33-02, China Citic Bank International, Julius Baer, China Fortune Land Development's international HQ, the Swiss National Bank, Bank Sarasin, Lloyd's of London, Marsh & McLennan, White & Case, Booz Allen Hamilton, Royal Bank of Canada,