Designed by Ken Shuttleworth of Make Architects, it contains 244 flats, 111,500 square feet (10,359 m2) of offices, shops, a hotel and a 'skyline' restaurant.
Bachy Soletanche Limited (BSL), led by Project Manager Oliver Cooper, then set to work creating a perimeter retaining wall around the site to prevent ground movement whilst the foundations were being constructed.
Along the western boundary of the site, a further 54 minipiles were installed to a depth of 12 m (39 ft) to provide further support Washington Wharf, an adjacent apartment building.
BSL then constructed 30 king post piles to provide the foundation for a temporary ramp which was required for future building works.
[7] Once this had been completed, BSL returned to construct 12 temporary anchors to hold back the retaining piles on the east side of the site.
[6] BuildAbility then subcontracted work for the construction of the concrete shell to O'Donnell, who assembled two tower cranes at either end of the site.
[8] BuildAbility decided to use unbonded post-tensioned concrete, an uncommon system in the UK, for the floorplates as this allowed them to be thinner and reduced construction time.
The remainder of the structure consists of a composite design with columns of exposed circular hollow sections (CHS), working as an architectural feature.
Heavier 600 mm (24 in) deep plate girders were installed in the centre of the crown to support the window cleaning machine.
[12] Additionally, HAGA contracted Wicona to assist with the manufacture of the cladding panels,[13] making it the largest project in the UK for the company.
[14] The fit-out process for the office space for the Highways Agency by JD Interiors incorporating J T Hawkes (electrical contractors) and Robert Prettie took 35 weeks to complete.
Lloyds TSB agreed to fund the development as the sole debt collector and provided a £87 million speculative loan that was to be issued in stages in accordance with the various phases of the project.
[16] However, against the backdrop of a challenging property market, on 26 March 2010 the Lloyds Banking Group called in PricewaterhouseCoopers as administrators to BDC and BuildAbility, after a failure to agree further funding for the project.
[17][18] It was rumoured that the additional funding was requested by BDC due to a budget overrun as a result of the complex design and construction methods.
The floor below the canal towpath level will be a courtyard area with a £250,000 public art piece created by Wolverhampton-born graffiti artist Temper.
The exterior of the cube is being clad in glazed and gold colour anodised aluminium panels with structural silicone bonding to the mullions.
This will be composed of polyester powder coated aluminium mullions and transoms incorporating double glazed units, as well as polyester powder coated aluminium panels with an outer glazed panel and a ceramic frit application, which will create a consistent glossy appearance throughout the atrium.
At the point where residential levels start, the atrium expands out and creates an opening in the canal elevation of the cube's facade.
It is two storeys in height and will house facilities for the boutique hotel and a rooftop restaurant with skybar, offering panoramic views of the city centre.
[27] It takes up the entire 14,000 sq ft (1,300 m2) top floor of the scheme as part of a £10 million investment by Sanguine Hospitality Limited.