The original plan for the building, developed soon after WilkinsonEyre's initial appointment in 2003, showed the three volumes separated by narrow atria. Following a two-year interlude after the 2008 financial crisis, the needs of the market had changed, and it was felt that larger, uninterrupted floor plates were required. On revisiting the scheme, the design team refined the design, moving the main core to the north and introducing a new, lateral atrium. This allowed the floor plates facing south across the plaza to Euston Road to be opened up across the full width of the building. It also created a much larger space for the soaring entrance lobby, which acts as a continuation of the large public square in front of the building.