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20 Fenchurch Street

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20 Fenchurch Street

20 Fenchurch Street
20 Fenchurch Street nearing completion in 2014
General information
Status Complete
Architectural style Postmodern
Location London, United Kingdom
Construction started January 2009
Completed April 2014[1]
Roof 160 m (525 ft)
Technical details
Floor count 34 (plus three-storey 'sky gardens')
Floor area Offices: 668,926 square feet (62,100 m2)[2]
Design and construction
Architect Rafael Viñoly
Developer Land Securities and Canary Wharf Group
Structural engineer Halcrow Yolles
Main contractor Canary Wharf Contractors
The previous building on the site, as seen from the Monument

20 Fenchurch Street is a commercial skyscraper in London that takes its name from its address on Fenchurch Street, in the historic City of London financial district. It has been nicknamed The Walkie-Talkie because of its distinctive shape.[3] Construction was completed in spring 2014, although the top-floor 'sky gardens' are expected to open during 2015. The 34-storey building is 160 m (525 ft) tall, making it the fifth-tallest building in the City of London.

Designed by architect Rafael Viñoly and costing over £200 million, 20 Fenchurch Street features a highly distinctive top-heavy form which appears to burst upward and outward. A large viewing deck, bar and restaurant will be included on the top three floors; these will be open to the public.

The tower was originally proposed at nearly 200 m (656 ft) tall but its design was scaled down after concerns about its visual impact on the nearby St Paul's Cathedral and Tower of London. It was subsequently approved in 2006 with the revised height. Even after the height reduction there were continued concerns from heritage groups about its impact on the surrounding area. The project was consequently the subject of a public inquiry; in 2007 this ruled in the developers' favour and the building was granted full planning permission.[4]

In their preliminary results for 2007, joint-developers Land Securities and Canary Wharf Group said 20 Fenchurch Street would be completed in 2011, however in 2009 during the depths of the Great Recession, the estimated completion was changed to 2014.[5][6]

It is one of a number of new tall buildings in the area; others include The Pinnacle, the Leadenhall Building, and an as yet unnamed project at 52-54 Lime Street. A number of companies, including several insurers and syndicates of the nearby Lloyd's insurance market, agreed to become tenants of 20 Fenchurch Street upon its completion, and the building has been one of the City's most successful in attracting tenants.

Previous building

The previous building at 20 Fenchurch Street was 91 m (299 ft) tall with 25 storeys and was built in 1968 by Land Securities. The architect was William H. Rogers.[7]

The building was formerly occupied by Dresdner Kleinwort and was notable for being one of the first tall buildings in the City of London, and for its distinctive roof. It was one of the towers nearest to the River Thames when viewed from the southern end of London Bridge.

In 2007, one of the upper floors was used in the drama series Party Animals.

Demolition of the previous building was completed in 2008. Despite the top-down method of construction, the old building was not demolished from the bottom-up, as a temporary structure was built, allowing Keltbray, the demolition contractor, to demolish the building from the top down.


The new tower at 20 Fenchurch Street was designed by an Uruguayan architect Rafael Viñoly in a postmodern style. The top-heavy design is partly intended to maximise floor space towards the top of the building, where rent is typically higher.

The building utilises double and triple-glazed panelised aluminium cladding on its exterior.

The botanical gardens at the top of the building will be London's highest public park — marginally higher than Rickman Hill Park in Coulsdon at 155 m above sea level at its highest point. The gardens will span the top three floors, will be accessible by two express lifts, and include a viewing area, terrace, café, bar and restaurant. Fourteen double-deck lifts (seven low-rise up to the 20th floor, seven high-rise above the 20th floor) serve the main office floors of the building.

The south side of the structure is ventilated externally to improve efficiency and decrease solar gain, whilst the east and west faces incorporate extensive solar shading. There is a southern entrance in addition to the main northern entrance set back from Fenchurch Street.


In January 2009, Canary Wharf Contractors began piling on the site of 20 Fenchurch Street, signalling the start of construction of The Walkie-Talkie. Piling and ground works were completed in June 2009.[8]

In January 2011, work at the basement level of the tower began.[9] By the end of October 2011, the building was rising above street-level. December 2011 saw the tower's core begin to rise.[10][11] The concrete core was topped out in March 2012 and by July the structural steelwork was under way around the core.[12] Structural steelwork topped out in December 2012.[13]

Fire protection contractor Sharpfibre Ltd began applying fire protection to the structural steelwork in December 2012, completing in March 2013. Cementitious spray was applied to the steelwork, which was supplied directly to the entire building using a purpose-built mixing and pumping station located on the ground floor.[14]

The building completed to shell and floor in April 2014 and the first tenants began moving into the building from May 2014.

Solar glare problem

During the building's construction, it was discovered that for a period of up to two hours each day if the sun shines directly onto the building, it acts as a concave mirror and focuses light onto the streets to the south.[15] Spot temperature readings including up to 91 °C (196 °F)[16] and 117 °C (243 °F) were observed[17] during the summer of 2013, when the reflection of a beam of light up to six times brighter than direct sunlight shining onto the streets beneath damaged vehicles parked on the street nearby, including one on Eastcheap whose owner was paid £946 by the developers for repairs to melted bodywork. The media responded by dubbing the building the "Walkie Scorchie"[18][19][20] and "Fryscraper".[15][21][22][23][24][25][26][27]

In September 2013, the developers issued a statement saying that the City of London Corporation had approved plans to erect temporary screening on the streets to prevent similar incidents, and that they were also "evaluating longer-term solutions to ensure the issue cannot recur in future".[15][28] In May 2014, it was announced that a permanent awning would be installed on the south side of the higher floors of the tower.[29]

The building's architect, Rafael Viñoly, also designed the Vdara hotel in Las Vegas which reportedly has a similar sunlight reflection problem that some employees called the "Vdara death ray".[30] The glass has since been covered with a non-reflective film.[31]

In an interview with The Guardian, Viñoly said that horizontal sun-louvers on the south side that had been intended to prevent this problem were removed at some point during the planning process. While he conceded that there had been "a lot of mistakes" with the building, he agreed with the building's developers that the sun was too high in the sky on that particular day. "[I] didn't realise it was going to be so hot," he said, suggesting that global warming was at fault. "When I first came to London years ago, it wasn't like this ... Now you have all these sunny days."[31]



In June 2012 the insurer Markel Corporation signed a tenancy agreement with the developers to move into 20 Fenchurch Street upon its completion. Markel, currently based on Leadenhall Street since 2001, was the first confirmed tenant of the new tower and will occupy the 25th, 26th and 27th floors.[32]

Another insurer, Kiln Group, announced in September 2012 that it had agreed to become the building's second confirmed tenant[33] and Ascot Underwriting followed in November 2012.[34] Other insurance companies that have taken space in the building include RSA, Tokio Marine, CNA Financial, Allied World, Liberty Mutual's European operations and Harry Townsend Corp.[35]

Other lettings have been agreed with Vanquis Bank, Jane Street Capital, and lawyers DWF, meaning 87% of the available space is leased.

See also


  1. ^ Beioley, Kate (13 January 2014). "DWF to move into Walkie Talkie building". The Lawyer. Retrieved 13 January 2014. 
  2. ^ "Schedule of areas". 20 Fenchurch Street. Retrieved 7 January 2014. 
  3. ^ Heathcote, Edwin (4 November 2011). "Points on views". Financial Times. Retrieved 3 September 2013. 
  4. ^ Land Securities (July 2007). "LAND SECURITIES’ 20 FENCHURCH STREET TOWER APPROVED" (PDF). Archived from the original on 28 September 2007. Retrieved 10 July 2007. 
  5. ^ Land Securities (May 2007). "Land Securities Group PLC Preliminary results for the year ended 31 March 2007" (PDF). Archived from the original on 28 September 2007. Retrieved 31 May 2007. 
  6. ^ Land Securities (March 2009). "Land Securities Annual Report for the year ended 31 March 2009" (PDF). Archived from the original on 16 November 2009. Retrieved 30 October 2009. 
  7. ^ Times Online (September 2008). "William Rogers: architect of groundbreaking office towers". London: Retrieved 16 September 2008. 
  8. ^ Klettner, Andrea (19 October 2010). "Construction to start immediately on Viñoly's Walkie-Talkie". Building Design. Retrieved 3 September 2013. 
  9. ^ "Construction Of Walkie-Talkie Tower Begins". Londonist. 19 January 2011. Retrieved 3 September 2013. 
  10. ^
  11. ^
  12. ^ "20 Fenchurch Street | City of London | 160m | 36 fl | U/C - Page 318". SkyscraperCity. 13 April 2012. Retrieved 3 September 2013. 
  13. ^ Wainwright, Oliver (12 December 2012). "The Walkie-Talkie: battle of the bulge on Fenchurch Street". The Guardian. Retrieved 3 September 2013. 
  14. ^ "Sharpfibre Walks The Talk And Delivers On Time". Sharpfibre. 27 February 2013. Retrieved 3 September 2013. 
  15. ^ a b c Sherwin, Adam (2 September 2013). "Walkie Talkie City skyscraper renamed Walkie Scorchie after beam of light melts Jaguar car parked beneath it". The Independent. 
  16. ^ "Who, what, why: How does a skyscraper melt a car?". BBC News Magazine. 3 September 2013. Retrieved 4 September 2013. 
  17. ^ "London's 'fryscaper' draws crowd on hottest day". Retrieved 8 September 2013. 
  18. ^ Jefford, Kasmira; Waterson, James (28 August 2013). "Walkie Talkie building scorches Londoners". CITY A.M. 
  19. ^ Waterson, James (2 September 2013). "Exclusive: Walkie Scorchie melted my Jag". CITY A.M. 
  20. ^ "London Walkie-Scorchie Skyscraper Cost-Cutting Blamed for Car-Melting, Egg-Frying Reflected Sunbeams". 1 January 2013. Retrieved 8 September 2013. 
  21. ^ Marsden, Sam (2 September 2013). "'"Glare from Walkie-Talkie skyscraper 'damaged vehicles. The Telegraph. Retrieved 3 September 2013. 
  22. ^ Spillane, Chris (4 September 2013). "London’s Walkie-Talkie ‘Fryscraper’ Draws Crowds in Heat". Bloomberg. Retrieved 8 September 2013. 
  23. ^ AFP 4 Sep 2013, 05.49AM IST (4 September 2013). "?Glare from ‘fryscraper’ melting cars in London". Times Of India. Retrieved 8 September 2013. 
  24. ^ "Glare from London 'fryscraper' becomes an attraction". USA Today. Retrieved 8 September 2013. 
  25. ^ "London's "fryscraper" melts cars". CBS News. 4 September 2013. Retrieved 8 September 2013. 
  26. ^ "Fryscraper Architect Responds". Business Insider. 3 September 2013. Retrieved 8 September 2013. 
  27. ^ Author, No (4 September 2013). "London 'fryscraper' glare melts cars". The Japan Times. Retrieved 8 September 2013. 
  28. ^ "Walkie-Talkie skyscraper to have screen put up to stop rays". BBC News. 3 September 2013. Retrieved 3 September 2013. 
  29. ^
  30. ^ Death ray' at Vegas hotel pool heats up guests"'". MSNBC. 30 September 2010. 
  31. ^ a b Wainwright, Oliver (6 September 2013). "'"Walkie Talkie architect 'didn't realise it was going to be so hot.  
  32. ^ "Markel moves to Walkie Talkie in 2014". 29 June 2012. Retrieved 3 September 2013. 
  33. ^ Buckley, James (14 September 2012). "LandSec/Canary confirm Kiln letting at Walkie Talkie". CoStar UK. Retrieved 3 September 2013. 
  34. ^ "Insurer Amlin rents space in the Cheesegrater". The Telegraph. 17 December 2012. Retrieved 3 September 2013. 
  35. ^ "Research & Forecast Report". Colliers International. Retrieved 3 September 2013. 

External links

  • The official website

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