- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 30 Nov 2016
1 Undershaft, or the 'Trellis Tower' as it has been nicknamed, was designed by Eric Parry Architects and will be located in the heart of the City of London.
At 73-storeys and a total height of 304.94 m, the tower will overlook its neighbours, the Cheesegrater and The Gherkin, but is just a little shorter than the Shard, currently the tallest building in western Europe. However, the tower will be able to lay claim to the highest occupiable floor.
Approximately 90,000 sq. m of office space will be provided, playing host to 10,000 workers. Maximum usable floor space will be achieved by the offset design of the core and the 'exoskeleton' bracing.
A free public viewing gallery will be included at the top of the building, which will also contain the city's highest restaurant. There are also ongoing talks with the Museum of London about the possibility of including a dedicated exhibition space.
At the base of the tower, a new public square will be created, with the public able to walk beneath the skyscraper, with the main office reception above.
The project is being developed by the Singaporean firm Aroland Holdings. The existing Aviva Tower is to be demolished before construction work on the new structure begins, with an estimated completion date in the 2020s.
Eric Parry said, “I wanted to do something calm. It is the last piece in the jigsaw, so I wanted to do something that isn’t flamboyant.”
Chris Hayward, chairman of the City’s Planning and Transportation Committee, said, “I’m delighted that we have approved 1 Undershaft. It is a truly unique building that fits in well with the City’s history, as well as our future ambitions for growth. This development shows the high levels of investor confidence in London’s status as a global city following our decision to leave the European Union.”
Image courtesy of Eric Parry Architects.
 Related articles on Designing Buildings Wiki
Featured articles and news
This CIOB article explores the concept of value in building design and construction.
BREEAM and Measurabl announce integration to improve the financial performance of commercial real estate.
Rogers Stirk Harbour + Partners' release new images of soon-to-open 3WTC tower in New York.
A document can be called a bond or a guarantee. Does the name matter and what is the difference between them?
New briefing note is launched focusing on increasing knowledge of housing that promotes health and wellbeing.
Arbitration is a private, contractual form of dispute resolution used in the construction industry.
The European Parliament has approved a revised Energy Performance of Buildings directive.
One in six MPs supports the ring-fencing of retentions as proposed in the 'Aldous Bill'.
A stakeholder is anyone who has an interest in the process or outcome of a construction project.
BRE launches online self-assessment tool for ethical labour sourcing.
Tower refurbishment failed to meet safety standards on several counts, according to leaked report.