One Canada Square
3rd tallest finished building in London

One Canada Square is an office building in London, with 50 floors, finished in 1991. It stands 236 m (774 ft) tall, which makes it the 3rd tallest finished building in London.
- Height
- 236 m · 774 ft
- Rank in London
- 3rd of 23 listed
- Floors
- 50
- Completed
- 1991
- Use
- Office
- City
- London, UK
Next to it in the ranking
1st · The Shard309.6 m · 1,016 ft · 2013
2nd · 22 Bishopsgate278.2 m · 913 ft · 2020
4th · Landmark Pinnacle233.2 m · 765 ft · 2020
5th · Heron Tower230 m · 755 ft · 2011
See all of London's tallest buildings
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Heights, floors and years for finished buildings follow published figures, cross-checked with Wikipedia's list of tallest buildings in London. Last checked 2 Nov 2026.