The Brief: The 120,000 ft2 office is the main regional administration centre for E.ON. It was commissioned as an essential part of a rationalisation strategy for the company in the East Midlands. Our brief was to deliver a commercial building which had low carbon emissions and could accommodate a large number of people, but with a high degree of transient occupation in some areas.

The Engineering Difference: We worked closely with the Architects to engineer the building envelope to minimise unwanted heat loss and gain and the building was computer modelled to optimise the amount of glazing and façade and shading.

The internal engineering system comprise a 4-pipe fan coil unit system, but the heating is provided via the Nottingham District Heating system and cooling is provided by cooled water from absorption chillers powered by the heat from the same system.

Heat recovery ventilation provides fresh air throughout the building and a fully digital BMS controls the HVAC systems to optimise the output from all the systems against demand.

The building achieves an Energy Performance Certificate rating of ‘A’ and a BREEAM rating of Excellent. The building also achieves requirements of the 2010 Building Regulations Part L2A.

Key Aspects: 

  • Engineered building envelope
  • Heat recovery ventilation
  • Zero carbon heating
  • EPC of ‘A’
  • BREEAM Excellent
  • Intrinsically sustainable
  • Desire for LZC technologies

Value: £25m approx

Duties: ACE Schedule of Services Performance Duties RIBA stages A to L

View the building on Google Maps