One Canada Square

One Canada Square
One Canada Square in London
Record height
Tallest in United Kingdom from 1990 to 2012[I]
Preceded by	Tower 42
Surpassed by	The Shard
General information
Type	Commercial[4]
Location	Canary Wharf London, England, UK
Coordinates	51°30′18″N 0°01′10.6″W / 51.50500°N 0.019611°W / 51.50500; -0.019611
Construction started	1988
Completed	1991 (1991)[1][2][3]
Cost	£624 million
Owner	Canary Wharf Group plc (current majority shareholder is Songbird Estates plc)[15]
Management	Canary Wharf Group plc
Height
Architectural	770 ft (235 m)AGL 800 ft (240 m)[5] ASL
Technical details
Floor count	50[4]
Floor area	1,224,142 sq ft (113,726.5 m2)[6]
Lifts/elevators	37[4]
Design and construction
Architect(s)	César Pelli & Associates[7][8][9][10] Adamson Associates[8][10][11] Frederick Gibberd Coombes & Partners[8][10][12]
Developer	Olympia & York[2][14]
Structural engineer	MS Yolles & Partners[8] Winston Group[8][13] Waterman Partnership[8][13]
Main contractor	Sir Robert McAlpine[10] Ellis Don[10] Lehrer McGovern[10] Bovis Balfour Beatty Olympia & York + approximately 40 sub-contractors
Website
onecanadasquare.co.uk
References
[16]

One Canada Square is a skyscraper in Canary Wharf, London. It is the third tallest building in the United Kingdom at 770 feet (235 m) above ground level,^[17] and contains 50 storeys. It achieved the title of the tallest building in the UK upon completion in 1991 and held the title for 21 years until the completion of The Shard (310m) in 2012.^[18][19]

One Canada Square was designed by César Pelli with Adamson Associates and Frederick Gibberd Coombes. The building is clad with stainless steel. One of the predominant features of the building is the pyramid roof, which contains a flashing aircraft warning light, a rare feature for buildings in the United Kingdom. The distinctive pyramid pinnacle is 800 feet (240 m) above sea level.^[5]

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 completely let.^[20] 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.