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One Angel Square, Manchester 3DReid

[OFFICES] Case study 7

Co-operative Group’s new office, the largest of its kind in Manchester, brings 3,500 staff under one roof. The brief was to create a building which is adaptable and flexible in its operation, highly efficient in its consumption of resources, economically viable and replicable. The structure and M&E systems allow occupiers to reorganise and subdivide accommodation as needs change, so the building avoids excessive refit costs.

One Angel Square is the highest scoring BREEAM ‘Outstanding’ building in the country and with a 50 per cent reduction in energy consumption, sets a new benchmark in sustainable design within the sector. Its design will reduce operating costs by up to 30 per cent. The double-skinned facade minimises heating and cooling, and underground concrete earth tubes provide free heating and cooling for incoming fresh air. Thermal mass is provided by exposing concrete soffits in the office areas. Waste air is extracted over the balcony edge using the natural stack effect of the atrium, avoiding large extract risers. This passes through a heat-exchanger that recycles the heat to warm incoming air. A water recycling system and rainwater harvesting lowers water consumption.

In front of the building, the 3,000ft² lawn and with 75 species of plants, trees and shrubs, provides gardens for the staff and public.

Graham Hickson-Smith, marketing and business development, 3DReid

Project data

Completion December 2012
Net:gross av78%, range 48-84%, office floors 80%
Cost £114 million
Net internal area 30,669m²
Cost/m² £2,496
Form of contract JCT D&B with novation
Client The Co-operative Group
Structural engineer Buro Happold
M&E consultant Buro Happold

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