1 Undershaft | |
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Proposed design for 1 Undershaft (centre), standing to the left of The Gherkin
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General information | |
Status | Approved |
Type | Office |
Address | 1 Undershaft |
Town or city | London, EC3 |
Country | United Kingdom |
Client | Aroland Holdings |
Height | |
Architectural | 289.9 m (951.2 ft) |
Technical details | |
Floor count | 73 |
Floor area | 132,000 m2 (1,420,836 sq ft) (office) |
Design and construction | |
Architecture firm | Eric Parry Architects |
Structural engineer | WSP |
Coordinates: 51°30′51″N 0°04′54″W / 51.514242°N 0.081583°W
1 Undershaft, informally known as The Trellis due to its external cross bracing, is a skyscraper planned for the City of London financial district which was given approval in November 2016. The scheme has been developed by Aroland Holdings and designed by Eric Parry Architects. It is set replace the St Helen's tower and upon completion will become the second tallest skyscraper in London and the United Kingdom.
In January 2015, early plans emerged of a replacement office building for the St Helen's tower in Undershaft within London's Square Mile. The proposal, named 1 Undershaft, was designed by Avery Associates who began working on the scheme in collaboration with the then owner of the site Simon Halabi in 2010. At 270 metres (885 ft), it would have become the third tallest building in London and the United Kingdom behind The Shard and the stalled Bishopsgate Tower.
In July 2015, details of a revised scheme by the new owners of the site, Aroland Holdings, were reported. The plans were for a skyscraper of 304 m (997 ft) designed by Eric Parry Architects. According to some reports, the design could be "modelled on Cleopatra's Needle".
In December 2015, the new design was released for a tower of 294.6 metres (966.5 ft) with 73 floors. Subject to planning permission, it was set to become the tallest building in the Square Mile when completed and the second tallest building in London and the United Kingdom behind The Shard. A consultation process took place in autumn 2015. On 8 February 2016, a planning application was submitted for the development, with a decision expected to be made in September 2016.