One Angel Square

One Angel Square
The Co-operative Group Building

One Angel Square from the adjacent CIS Tower
General information
Status Complete
Type High rise office
Architectural style Contemporary /
Sustainable architecture
Location NOMA, Manchester,
Greater Manchester,
England.
Address One Angel Square[1]
Manchester
M60 0AG
Current tenants The Co-operative Group[2]
Construction started 16 July 2010[3][4]
Completed March 2013
Inaugurated 14 November 2013[5][6]
Cost £105 million (build cost)[7]
£142 million (2013 sale cost)[8]
Owner Deutsche Bank
Gingko Investments (2013-2038)
Height 72.5 metres (238 ft)
Technical details
Structural system Three concrete cores
Steel / Glass frame[9]
Floor count 14
Design and construction
Architect 3DReid
Structural engineer Buro Happold (Structural , MEP, and fire engineering)[10]
Waagner Biro (Double skin façade)[11]
Other designers Mecanoo and Royal Haskoning (Landscape architect)[11]
Main contractor BAM Construction[12]
Gardiner & Theobold[13]
Awards and prizes See below
References
[14]

One Angel Square[1] is an office building in Manchester, England. Construction work began in 2010 and was completed in February 2013. The landmark building is the head office of the Co-operative Group. Standing 72.5 metres (237.8 feet) tall, the building forms the centrepiece of the new £800 million NOMA development in the northern quarter of Manchester city centre. The building cost at least £105 million to construct and was sold on leaseback terms in 2013 for £142 million.

One Angel Square is one of the most sustainable large buildings in Europe and is built to a BREEAM 'Outstanding' rating.[12] It is powered by a biodiesel cogeneration plant using rapeseed oil to provide electricity and heat.[10] The structure makes use of natural resources, maximising passive solar gain for heat and using natural ventilation through its double-skin facade, adiabatic cooling, rainwater harvesting, greywater recycling and waste heat recycling.[15]

The building's distinctive form has been compared to a sliced egg and a ship.[16] Its design was announced by architects 3DReid in May 2009 and construction began in July 2010 with a projected completion date in March 2013. In December 2012, the scheme surpassed its pan-European sustainability aims and achieved a world-record BREEAM score of 95.32%.[17] It is also an energy-plus building, producing surplus energy and zero carbon emissions. The building has received numerous awards for its striking aesthetic and sustainability aims.

History

A CGI image of the proposed design, announced in May 2009.

Background

The Co-operative Group announced plans to move from its headquarters on Miller Street and Corporation Street to a new site in the Greater Manchester area in 2007.[18] From 2007 to 2011, the group grew strongly according to CEO Peter Marks, membership doubled to six million and revenue and profits also doubled.[19] Takeovers of Somerfield and the Britainnia Building Society fuelled impetus for new head offices to accommodate the growth.[20]

In December 2008, the group announced it would remain in Manchester city centre and would regenerate land opposite its Miller Street base.[21] The new building is close to Angel Meadow the site of a 19th-century slum described by Friedrich Engels as 'hell on earth'.[22] Archaeologists conducted a survey in 2010, which continued into 2012.[23]

The CIS Tower and the Co-operative Bank's Balloon Street headquarters are unaffected by the development.[24] New Century Hall, home to Co-operative Food,[25] the Dantzic, Hanover, Redfern and Federation Buildings will be vacated and renovated for let.[26]

In 2011 the Co-operative announced the NOMA project, north of Manchester city centre, to regenerate a 20-acre site with office, retail, residential and hotel space to encourage visitors from the city centre. Manchester City Council contributed £20m to the project as an incentive for redevelopment.[27]

In December 2011 the Co-operative announced its new headquarters would be known as 'One Angel Square'.[1]

Construction

One Angel Square as viewed from the CIS Tower nearing completion in October 2012.

Construction work began in July 2010 soon after planning permission was granted.[28] The first task was installing the 539 pile foundations - each at an average depth of 18 metres.[29] Work soon began on assembling the 3,300 tonnes of steel and 1,948 coffered concrete floor slabs which make up the structure of the building.[29] BAM Construction was the main building contractor with cost management, project management and CDM coordination provided by Gardiner & Theobald.[30] Specialist services were supplied by Buro Happold for structural and fire engineering[10] and Austrian-based Waagner Biro was commissioned to build the double skin façade.[11] The structure was digitally modelled by BAM before commencing assembly and construction to improve safety and create a building schedule thus saving time during the construction process.[31]

More than 4,000 workers from over 90 companies were involved in the building's construction making it the largest building site outside South East England.[24][32] The building was topped out in November 2011 and work began assembling the bronze-coloured diagonal panels of exterior façade.[33] The panels were installed using roped access techniques.[34]

An estimated £17m of building materials out of the total £100m cost has been locally sourced reducing embodied energy and minimising environmental impact.[35] Mecanoo and Manchester-based Royal Haskoning designed the landscape in front of the building.[11]

Inauguration and opening

South facade

Construction and fitting out was originally scheduled for completion in September 2012,[36] however opening was postponed to 2013 due to delays in the fitting out process.[5] In July 2012, the Co-operative Group announced One Angel Square was on the market for £150 million on leaseback terms so it could gain capital to invest in Phase Two of the NOMA development.[37] The leaseback sale attracted nine bids from six continents.[38] In February 2013, the Group sold the building for £142 million to RREEF Estates, the property investment arm of Deutsche Bank and Ginko Tree Investments, an investment arm backed by the Chinese sovereign wealth fund.[8]

Architecture

CGI images of the building with future site context
The NOMA development around One Angel Square is due to be completed by 2027. An international architecture competition was launched in 2011.[39]

The Manchester division of 3DReid designed the building with a brief to create a green, landmark building for the city. The building's distinctive form was conceived in a notebook sketch by the lead architect for the building, Mike Hitchmough.[40] The form was refined and developed, before being unveiled to the public in May 2009.[41]

The building's interior primarily consists of open plan space and can accommodate up to 4,000 staff.[42] The building has 327,643 sq ft (30,439 sq m) of total space - approximately 29,000 sq ft (2,694 sq m) per floor.[28] In keeping with the building's green credentials, employees will be encouraged to use public transport or cycle to work. Facilities have been created to encourage cycling by providing 105 cycle stands.[43]

Form

The building has been nicknamed the 'sliced egg' because of its distinctive shape.[16] A focal point is the diagonal slice which creates a nine-floor high atrium with its glass roof tilted towards the south, maximising daylight and passive solar gain.[44] The structure has three internal concrete cores in the form of an equilateral triangle.[44] Steel was utilised as the building main material, its strength allows for large column-free floors needed in an open plan building.[9]

The building's exterior has a double skin facade with a cavity between its inner windows and the outer glass panel structure. The double skin facade is for sustainability and aesthetic reasons - and allows for greater control of heating and ventilation, and accentuates the three curved corners of the building. To accentuate the form further, the exterior aluminium structure holding the glass panels in place has been anodised in a bronze-coloured finish, so it will shimmer in the sun. The facade was originally to be powder-coated but the client decided to spend an additional £120,000 on a bronze anodised finish. This excess was justified as being cheaper over 50 years than using a powder coated finish which would required maintenance.[45] The building's form has been compared with The Ark and City Hall in London.[45]

Sustainability

Detail of the double skin façade that increases natural ventilation. There is a walkway between the inner and exterior façade panels for maintenance and solar shading.

The building is one of the largest in Europe to have a BREEAM outstanding distinction as a result of its high, sustainable energy credentials.[46] In December 2011 the building achieved the highest recorded BREEAM score, making it one of the most sustainable large buildings in the world.[17]

The open atrium faces south to collect heat from the sun, an example of passive solar building design.[46] The diagonal slice is angled to the south to allow sunlight to pass into the upper floors and atrium. The sun emits electromagnetic radiation in the form of ultraviolet, but changes to infrared when it passes through glass. This creates heat inside the building and overheating will be countered by five stepped curved shades above the atrium which prevent sunlight overheating the building and stops glare. In winter, louvres atop the double-skin façade are closed to maintain the warm air generated in the building. In summer, the opposite occurs and louvres atop the double-skin façade open and consequently expel hot, rising air from the building to reduce overheating.[47]

The building's sustainable cogeneration heat and power plant uses bio-fuel and waste cooking oil. Its computer systems will recycle waste heat. The building has a used water recycling system and rainwater harvesting.[46] Thermal mass materials which have a high density such as concrete are used to control temperature fluctuations.

Awards

One Angel Square is the only commercial building in the United Kingdom to achieve maximum ratings in energy and sustainability performance by the three main rating systems.[48] It has BREEAM 'Outstanding' accreditation and an A-rated Energy Performance Certificate and Display Energy Certificate.

The building has been awarded:

See also

References

  1. 1 2 3 Binns, Simon (9 December 2011). "Co-op Names New Head Office Address 'One Angel Square'". Manchester Confidential. Retrieved 2011-12-09.
  2. ↑ "Welcome to The Co-operative Estates". Retrieved 2011-11-26.
  3. ↑ "The Co-operative head office has immediate impact on Manchester". The Co-operative Group. 16 July 2010. Retrieved 2011-12-01. The construction of The Co-operative Group's new £100m head office in Manchester, which officially began today (16 July), is set to have an immediate impact
  4. ↑ "Co-operative Group mark construction start on Manchester HQ". Urban Realm. 20 July 2010. Retrieved 2011-11-26.
  5. 1 2 "Co-op postpones staff HQ move". Manchester Evening News. 23 October 2012. Retrieved 2012-10-23.
  6. ↑ Brooks-Pollock, Tom (5 November 2013). "The Queen and Prince Philip in Manchester visit to open Co-op's new Noma building". Manchester Evening News. Retrieved 2013-11-07.
  7. ↑ "One Angel Square Brochure" (PDF). Co-operative Group. p. 16. Retrieved 2013-01-23.
  8. 1 2 "Co-op sells One Angel Square for £142m". placenorthwest. 13 February 2013. Retrieved 2013-02-17.
  9. 1 2 "Barnshaw's double curve huge 925mm high beams for Co-op HQ Manchester.". Barnshaw. 27 October 2011. Retrieved 2011-11-26.
  10. 1 2 3 "Co-operative Headquarters". Bruno Happold. Retrieved 2011-11-26.
  11. 1 2 3 4 "Co-operative Head Office reaches another milestone". 3DReid Architects. 12 July 2011. Retrieved 2011-12-01.
  12. 1 2 "Co-operative Group's new Manchester home". The Co-operative Group. 24 June 2010. Retrieved 2011-11-26.
  13. ↑ "Key partners". The Co-operative Group. Retrieved 2011-12-13.
  14. ↑ "Co-operative Group Headquarters". skyscrapercity.com. Retrieved 2011-11-26.
  15. ↑ "Low Carbon Office design". forty4consulting. Retrieved 2012-03-10.
  16. 1 2 "Work Starts On Co-operative Groups Sliced Egg". skyscrapernews.com. 18 August 2010. Retrieved 2011-11-26.
  17. 1 2 "The UK's Most 'Outstanding' Green Building". designbuildsource.com.au. 21 December 2012. Retrieved 2012-12-23.
  18. ↑ "Co-op to quit city centre". Manchester Evening News. 30 October 2007. Retrieved 2011-11-26.
  19. ↑ "Co-op's sound investment at the Manchester International Festival". Manchester Evening News. 29 June 2011. Retrieved 2011-11-26.
  20. ↑ "Co-op completes Somerfield move". BBC News. 2 March 2009. Retrieved 2011-11-26.
  21. ↑ "Co-op unveils site of new HQ". Manchester Evening News. 19 December 2008. Retrieved 2011-11-26.
  22. ↑ "Angel Meadow: 'Hell upon Earth'". BBC News. 2 September 2009. Retrieved 2012-03-07.
  23. ↑ Kirby, Dean (1 March 2012). "Digging up the past: Archaeologists reveal grim secrets of Angel Meadow, Manchester's filthiest slum". Manchester Evening News. Retrieved 2012-03-07.
  24. 1 2 "New HQ for a new age". thenewscoop. 1 June 2009. Retrieved 2011-11-26.
  25. ↑ "Co-op Noma site back on schedule". Manchester Evening News. 8 June 2011. Retrieved 2011-11-26.
  26. ↑ "Co-op Plan New Headquarters In Manchester". skyscrapernews.com. 19 December 2008. Retrieved 2011-12-01.
  27. ↑ "£20m for 'Co-op quarter'". Manchester Evening News. 3 June 2010. Retrieved 2011-11-26.
  28. 1 2 "Work starts at £100m Co-op HQ". Manchester Evening News. 15 July 2010. Retrieved 2011-11-04.
  29. 1 2 Schofield, Jonathan (16 October 2012). "1 Angel Square: Picture And Video Gallery". Manchester Confidential. Retrieved 2012-10-17.
  30. ↑ "Global Experience - Manchester: One Angel Square". gardiner.com. Gardiner & Theobald.
  31. ↑ "BAM Sustainability Report 2010". BAM Construction. Retrieved 2012-04-27.
  32. ↑ "'Tough times' for building sector, say industry experts". BBC News. 27 January 2011. Retrieved 2011-11-27. Another major building project is the new £100m Co-operative Group head office in Manchester city centre - the UK's largest construction site outside the south east.
  33. ↑ "NoMa tops out". Place North West. 11 November 2011. Retrieved 2011-11-26.
  34. ↑ "Co-op Manchester – Installation, Waagner Biro". Alternative Access. 2 February 2012. Retrieved 2012-03-08.
  35. ↑ "Local economy receives £17m bonus from Co-operative Group's new HQ". Manchester Evening News. 16 December 2011. Retrieved 2011-12-18.
  36. ↑ Sillitoe, Ben (1 November 2011). "Co-op's new sustainable HQ stands tall". Retail Gazette. Retrieved 2011-12-01.
  37. ↑ "Co-operative Group's NOMA boss confident of HQ sale". Manchester Evening News. 16 July 2012. Retrieved 2012-07-20.
  38. ↑ "3 Angel Square - page 12" (PDF). The Co-operative Group. Retrieved 2014-03-13. Recognised by an elite international investor profile including 9 bids from 6 continents. line feed character in |quote= at position 64 (help)
  39. ↑ "Co-op video shows central Manchester's 'future skyline'". BBC News. 8 September 2011. Retrieved 2012-12-26.
  40. ↑ "Original sketch of The Co-operative's new head office". Flickr. 27 April 2010. Retrieved 2012-02-17. Original notebook sketch of The Co-operative's new head office by Mike Hitchmough, lead architect for the development
  41. ↑ "Co-op unveils designs of new HQ". BBC News. 21 May 2009. Retrieved 2011-11-26.
  42. ↑ "Exciting times for the Co-op - it even flourishes in hard times". Manchester Evening News. 7 July 2011. Retrieved 2011-11-26.
  43. ↑ "One Angel Square - Description". oneangelsquare.co.uk. Retrieved 2012-08-27.
  44. 1 2 "Co-operative Group's Manchester HQ features shape of a sliced egg". World Interior Design Network. 20 August 2010. Retrieved 2011-11-26.
  45. 1 2 "The Co-op's HQ: Have you heard the buzz?". building.co.uk. 23 November 2012. Retrieved 2013-03-30.
  46. 1 2 3 "Sustainable development". The Co-operative Group. Retrieved 2011-11-26.
  47. ↑ "One Angel Square, Co-operative Group HQ". breeam.org. Retrieved 2013-03-14.
  48. ↑ "One Angel Square - Sustainability". One Angel Square. Retrieved 2012-08-18.
  49. ↑ "Co Operative Head Office". Considerate Constructors Scheme. Retrieved 2012-03-08.
  50. ↑ "Japanese Knotweed water feature helps Manchester's Co-operative Head Office achieve astonishing score from independent inspectors". BAM Construction. 21 February 2011. Retrieved 2012-03-08.
  51. ↑ "Sustainable Project of the Year". Building and Engineer Awards. 10 October 2011. Retrieved 2011-11-26.
  52. ↑ "Architect of the Year". Building and Engineer Awards. 10 October 2011. Retrieved 2011-11-26.
  53. ↑ "Sustainability Achievement Award: The Cooperative Group - sponsored by Power Efficiency". Property Week. Retrieved 2012-04-27.
  54. ↑ "Shortlist 2012 - Future Project, Office". World Architecture Festival. Retrieved 2012-09-05.
  55. ↑ "10 Downing Street leads the way at the BREEAM Awards 2013". breeam.org. 5 March 2013. Retrieved 2013-03-14.
  56. ↑ "MIPIM Awards 2013 - Office and Business Development". MIPIM. 30 January 2013. Retrieved 14 February 2013.
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Coordinates: 53°29′15″N 2°14′13″W / 53.4874°N 2.2369°W / 53.4874; -2.2369

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