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The Co-operative Group HQ, One Angel Square, Manchester

Client: The Co-Operative Group

Architect: 3D Reid

Budget: £120m

Completed: 2015

S I Sealy was engaged in providing the detailed design for the Co-operative Group new Headquarters in Manchester.

The One Angel Square Headquarter building is one of the most iconic on the Manchester skyline. The building provides over 320,000sqft of Category A open plan office space, is fully BCO compliant and is highly flexible with particular regard to the adaptability and ease of subletting.

Each floor comprises three 10,000sqft wings. Each wing can be further subdivided into three lateral spaces of just 3,333sqft in each. The building also includes a large number of research and development catering kitchens, a large restaurant, gymnasium, foyer and a large 250 seat auditorium.

Good buildings aspire to have a carbon footprint of between 20 and 25kgCO2/m2/per annum, whereas the Co-operative Group HQ has a carbon footprint of -75kgCO2/m2/per annum. The building achieved BREEAM “Outstanding”, which was the highest BREEAM assessment for any commercial building in Europe at the time of construction.

Our services included 3D modelling, together with complex building energy modelling and dynamic simulation to calculate and assess the building’s energy consumption and potential EPC and DEC ratings.


2013 RICS Awards – Design & Innovation (Winner)
2013 RICS Awards – Overall Project of the Year (Winner)
2013 RIBA Awards – North West Region (Shortlisted)
2013 BCO Awards – North West Region (Joint Winner)
2013 BCO Awards – Corporate Workplace (Winner)
2013 Manchester Society of Architects Awards (Winner)

  • Bio-Fuel CHP and emergency generator
  • Large central atrium with heat recovery
  • Absorption cooling
  • Maximised daylight
  • Passive chilled beams
  • Fully integrated BMS
  • Mixed mode ventilation
  • Hydrocarbon chillers
  • Double skin façade with heat recovery
  • Water cooled chillers with condensing circuit heat recovery