EngTree
Buildings & structures
Buildings & structurestower/high-rise

25 Canada Square (Citigroup Centre)

Canary Wharf, London, UK · 1998-2001

The judgement call

Account-gated at launch

Not explicitly detailed in sources.

Key engineering challenges

Construction of a high-rise building in a dense urban environment. - Integration with the Canary Wharf development.

Project facts

Client / owner
Citigroup
Lead contractor
Lead designers
Cesar Pelli & Associates
Project type
new build
Scale
45-story tower; steel construction.
Disciplines
Architecture; structural engineering
Standards & frameworks
UK building standards of the period.

Sources: https://en.wikipedia.org/wiki/Citigroup_Centre_(London); https://www.skyscrapercenter.com/building/25-canada-square/1655; https://wilkinsoneyre.com/projects/citi-tower; https://www.constructionmap.info/site/116717/citibank; https://fortune.com/europe/2025/01/16/citigroup-faces-1-billion-bill-london-hq-overhaul-multi-level-garden-mini-villages-staff-office/; https://pcparch.com/work/one-canada-square-and-docklands-light-railway-station; https://www.alamy.com/stock-photo/25-canada-square.html; https://kids.kiddle.co/25_Canada_Square