Spirals of Glass

The tower's glazing wraps around a diagonally braced structure, with a new public space of around 7500 square feet (694 square meters) of retail in a double-arcade on the ground floor. Entrances to the building are through high triangular archways cut out of the diamond grid of the facade.

The building provides 450,000 square feet (41,810 square meters) of net office space. At the edge of each floorplate is horizontal slots, created by "twisting" each successive floor. This allows natural ventilation although air-conditioning is also incorporated by taking advantage of the large pressure differentials that draw air in through horizontal slots in the cladding.

At every sixth floor, the atria feature gardens that control and purify moving air and divide the building into fire safety zones. The balconies on the edge of each light-well provide strong visual connections between floors and create a natural focus for communal office facilities.

The envelope at the office areas consists of a double-glazed outer layer and a single-glazed inner screen that sandwich a central, ventilated cavity containing solar-control blinds. These cavities act as buffer zones to reduce the need for mechanical heating and cooling and are ventilated by exhaust air drawn from the offices.