The Citigroup Centre in Canary Wharf is two office towers, 25 Canada Square and 33 Canada Square. César Pelli & Associates designed 25 Canada Square with Adamson Associates as executive architect. Norman Foster designed 33 Canada Square. Citigroup owns 33 Canada Square, and bought back 25 Canada Square in 2019 for 1.2 billion pounds. Construction of 25 Canada Square began in 1998 and finished in 2001. 33 Canada Square was completed in 1999. The article gives no style.
25 Canada Square is 200 meters tall with 45 storeys, and 33 Canada Square is 105 meters with 18 floors. The complex has 170,000 square meters of floor space. When completed, 25 Canada Square was the UK's second-tallest building behind One Canada Square.
A refurbishment began in July 2023. The 2022 plan cost 100 million pounds, but costs had risen to over 1 billion pounds by January 2025.
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