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Strata SE1

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Strata SE1

Strata SE1
View of the Strata from New Kent Road
General information
Status Complete
Type Residential
Location 8 Walworth Road, Southwark, London SE1 6EE, SE1 6EG, SE1 6EH, SE1 6EJ, SE1 6EL
Construction started 2007
Completed 2010
Cost over £113 million [1]
Roof 148 m (486 ft)
Technical details
Floor count 43
Floor area 306,000 sq ft (28,400 m2) GEA / 255,000 sq ft (23,700 m2) NIA
Lifts/elevators 4
Design and construction
Architect BFLS
Developer Brookfield Europe
Structural engineer WSP — Structural, M&E Engineer, Acoustic Consultants and Fire Engineer
Main contractor Brookfield Multiplex

Strata SE1 is a 148-metre (486 ft), 43-storey building at Elephant and Castle in the London Borough of Southwark in London. Designed by BFLS (formerly Hamiltons), it is one of the tallest residential buildings in London and more than 1,000 residents live in its 408 flats.[2][3]

The building

Strata SE1 is located on the site of Castle House, an early 1960s six-storey office building, which was the first commercial premises at the newly rebuilt Elephant and Castle. When completed, Castle House was warmly received. The Architects’ Journal in August 1962 found "little to criticise and much to praise and until New Zealand House is completed it is possibly one of the best examples for anyone wanting to look at a good office block in London."[4]

25% of the building's flats have been sold by Family Mosaic Housing Association for shared-ownership sale. These consist of the "Esprit Apartments" — located on floors 2–10 of the tower — and a further nine flats in the adjacent "Pavilion", a three-storey structure located to the west of the tower and earmarked for former residents of the nearby Heygate Estate.

Each floor of the affordable area comprises 10 flats (equally divided between one and two-bedroom flats), while each floor above the 10th floor contains 11 flats in a mixture of studios, one-bedroom flats, two-bedroom flats, and three-bedroom flats to a total of 310 units.

Only the open-market flats have access to car-parking (in the basement of the building). The 39th floor features a "Sky Lobby" (a small corridor with a view over central London), while the living area is topped by a £2.5m three-bedroom duplex penthouse. The ground floor comprises two commercial units. A third one is located in the Pavilion, along with a "kiosk". All three remain unoccupied.[5]

The top of the building features three wind turbines.

The building has its own extranet site, named "inhabit".

The one-level basement of the building contains a secure car park and 437 bicycle storage places.

The building features prominently in the science-fiction novel, Ice Diaries, by Lexi Revillian.[6]


The core rising in June 2008.

The current tower was first proposed in 2005; construction began in 2007 and was completed in June 2010. The cost is estimated at £113.5 million. The building was 'topped out' in June 2009.[7] Attended the topping out ceremony were over 70 senior members of London’s business community including Sir Simon Milton, Deputy Mayor for Policy and Planning, Cllr Nick Stanton, Leader of Southwark Council and Simon Hughes, MP for North Southwark and Bermondsey.[8] The turbines were installed in May 2010.

During the demolition of Castle House to clear land for Strata, a construction worker, John Walker, 33, was killed when a roof collapsed on him.[9] He was employed by 777 Demolition and Haulage Company Ltd, which was served with a Prohibition Notice by the Health & Safety Executive. An inquest was due to be held at Inner London South Coroner's Court.[10]


Strata SE1 is one of the first buildings in the world to incorporate wind turbines as part of its structure.[11][12] Randoll, the engineering consultancy involved with the Bahrain World Trade Center, which also features wind turbines, was involved in the project.[13]

The three 9-metre (30 ft) wind turbines at the top of the building are rated at 19 kW each and are anticipated to produce a combined 50MWh of electricity per year.[11][12] They are expected to generate sufficient energy to provide power for the common areas of the building (8% of the energy needs of the building),[11][12] although questions about their real efficiency will remain unanswered until the completion of two years of comprehensive wind data analysis.

The building exceeds by 13% the current UK regulations relating to sustainability, whilst overall carbon emissions are expected to be 15% lower than the Mayor of London's good practice benchmark.[14] The developers claim that the building will achieve 2050 CO2 target emissions and that (with the Multi-Utility Services Company in place in the area) it will achieve a predicted 73.5% reduction in CO2 emissions when measured against the Building Regulations benchmark.[15]

Featured on-site is a combined heat and power system to provide sustainable power generation, with a provision for the collection of rainwater for re-use.[14] The energy costs per flat are envisaged to be up to 40% less than Britain's typical housing average.[14] The building is clad in a "bespoke high thermal performing facade" with an air permeability leakage rate that is apparently 50% better than current building regulations.[16]


The lobby in August 2012.
Floor plan (floors 2-10)

Considerate Constructors Scheme

  • Bronze Award 2010 – Strata SE1
  • Gold Award 2011 – Strata SE1

On 12 November 2010, the building was the overall winner of the 2010 Concrete Society Awards, ahead of schemes from David Chipperfield, Hopkins Architects, Caruso St John, McInnes Usher McKnight Architects (MUMA) and Alsop Architects. The judges commented: "This building is striking architecturally, a considerable feat of construction on this restricted site...". They particularly singled out Strata’s "innovative column strategy".[17]

Structural Steel Design Awards 2010

  • 3 Bronze Awards for Strata SE1 - Awarded to Principal Contractor - Brookfield Multiplex Construction Europe Ltd, Developer - Brookfield Europe & Subcontractor - Bourne Steel

City of London Sustainable City Awards 2011

  • Highly Commended for Resource Conservation - Strata SE1
  • Highly Commended for Sustainable Building - Strata SE1

In May 2011, the building was shortlisted for the

The Green Apple Awards 2011

  • Strata SE1 – Environmental Best Practice - Sustainability Sector of Building and Construction (award ceremony November 2011)

RICS Awards 2011

  • Regeneration Runner-Up – Strata SE1

London District Surveyors Association 2011

  • Best Sustainability Project Strata SE1 – for the recognition of high standards of construction and workmanship

ACE Engineering Excellence 2011

  • Building Services – Strata SE1

The Strata Inhabit website (the information site for residents of the building) won "Website of the Year" at the News on the Block Property Management Awards on 5 December 2011.[19]

Detail of the wind turbines

In August 2010, Strata SE1 was awarded the 2010 Building Design magazine, selects one building from a shortlist of 30, nominated by readers. It recognises "the ugliest building in the United Kingdom completed in the last 12 months".[20][21]

On 2 April 2012, the building appeared in a list of the world's 21 ugliest buildings on the Daily Telegraph's website.[22]

In March 2014, an Ipsos MORI poll for New London Architecture of 500 members of the public aged 16–64 declared Strata SE1 Londoners' fifth favourite tall building, behind 30 St Mary Axe, The Shard, The Leadenhall Building and One Canada Square.[23]


  1. ^ "STRATA BUILDING aka RAZOR: How Buildings Make Its Own Energy " 5election - The International Coolhunting Magazine" (in Italiano). 2011-03-17. Retrieved 2012-04-06. 
  2. ^ Susan DeFreitas (15 March 2010). "London’s New Strata Skyscraper Incorporates Wind Turbines". EarthTechling LLC. Retrieved 17 March 2010. 
  3. ^ "Elephant's carbuncle". Daily Telegraph. 12 August 2010. Retrieved 23 January 2013. 
  4. ^ "Draper Estate". Past-War Buildings. 2007. Retrieved 6 December 2010. 
  5. ^
  6. ^ "Elephant & Castle Strata tower features in post-apocalyptic novel". SE1. 2013. Retrieved 9 October 2013. 
  7. ^ "'"Strata SE1 43-storey tower at Elephant & Castle 'topped out. London SE1 Community Website. Bankside Press. 8 June 2009. Retrieved 14 June 2009. 
  8. ^ "Brookfield Tops Out "Strata SE1", Central London's Tallest Residential Scheme". Brookfield. Brookfield. 5 June 2009. Retrieved 23 January 2013. 
  9. ^ "Details of Work-Related Deaths in London in 2007". (accessed through Centre for Corporate Accountability. 2 August 2010. Retrieved 15 April-2 August 2010. 
  10. ^ "Notice 300831073 served against 777 Demolition and Haulage Company Ltd on 02/08/2007". HSE Public Register of Enforcement Notices. Health & Safety Executive. 2 August 2007. Retrieved 15 April 2010. 
  11. ^ a b c Ariel Schwartz (15 March 2010). "Strata Tower: The First Building With Wind Turbines Incorporated Into Its Design". Mansueto Ventures LLC. Retrieved 9 August 2010. 
  12. ^ a b c "Strata tower: A skyscraper with wind turbines incorporated in its design". 17 March 2010. Retrieved 9 August 2010. 
  13. ^ Jens Bennetsen (2012). "High Rise Wind Turbines". Retrieved 1 August 2013. 
  14. ^ a b c "Strata, London, United Kingdom". Emporis Corporation. Retrieved 9 August 2010. 
  15. ^ "BFLS complete Strata SE1 — first building in the world with integral wind turbines". World Architecture News. 3 August 2010. Retrieved 9 August 2010. The result demonstrates that Strata SE1 will achieve a predicted 73.5% reduction in CO2 emissions when compared against the Building Regulations benchmark. 
  16. ^ Nico Saieh (25 July 2010). "Strata SE1 / BFLS". ArchDaily. Retrieved 9 August 2010. Various low energy features incorporated into the Strata SE1 include bespoke high performing facade with an air permeability leakage rate that is 50% better than current building regulations... 
  17. ^ Innovative" Strata sweeps the board at the 2010 Concrete Awards""". BFLS. 12 November 2010. Retrieved 15 November 2010. 
  18. ^ "Strata SE1 shortlisted for ICE London Civil Engineering Awards 2011". WSP UK. 27 January 2011. Retrieved 20 May 2011. 
  19. ^ "Property Management Awards". Retrieved 6 December 2011. 
  20. ^ Ellis Woodman (12 August 2010). "Strata tower wins 2010 Carbuncle Cup". BDonline. United Business Media. Retrieved 12 August 2010. 
  21. ^ Robert Booth (12 August 2010). "London's Strata tower wins Carbuncle Cup as Britain's ugliest new building". The Guardian. Retrieved 10 November 2010. 
  22. ^ "Are these the ugliest buildings in the world?". Retrieved 3 April 2012. 
  23. ^ "Shard is Londoners' second-favourite skyscraper". SE1 Direct. 27 March 2014. Retrieved 31 March 2014. 


  • Brookfield's Elephant & Castle tower takes shape,, 8 March 2010.
  • The Strata 'Razor' tower: the cutting-edge of eco-construction, The Guardian, 15 March 2010 (10 pictures).
  • In Pictures: Strata Tower, Residential Skyscraper At Elephant And Castle, Londonist, 18 March 2010.
  • Strata tower: Southwark’s sore thumb,, 9 April 2010.
  • Don’t Look Down When Strata Tower Opens With Best London Views, Business Week, 13 April 2010.
  • Nestled among ghost homes, Business Day, The Sydney Morning Herald, 16 April 2010.
  • The high life in Elephant & Castle, The Times, 19 May 2010.
  • Tower to the people in Elephant and Castle, Evening Standard Homes&Property, 26 May 2010.
  • Wind-powered high-rise living?, Sydney Morning Herald, 30 June 2010.
  • Strata SE1, London – propelling sustainable regeneration, Daniel Cowan, Proceedings of the ICE - Civil Engineering, Volume 163, Issue 6, 1 November 2010, pages 056 –063, ISSN: 0965-089X, E-ISSN: 1751-7672

External links

  • Strata London official website
  • @StrataSE1 — official Twitter stream (unused)
  • BFLS London — BFLS website
  • Strata SE1 — official Flickr photostream
  • Main plans of planning application — 27 June 2005
  • Approval of planning application for cycle storage — 17 September 2007
  • Strata building @ Skyscraper
  • Sketching Strata SE1, The NBS (RIBA). Chris Playle, structural engineer at WSP, explains the construction principles used for the building.
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