This building comprises a lower basement for mechanical equipment, a basement for the vault and a basement for mezzanine linking to the existing vault. There is a podium consisting of ground, mezzanine, first floor car park, second floor car park and banking hall, third floor currency department. The third floor provides access to the garden.
Above the podium, the tower comprises 12 floors and two plant room floors. The height of the building is 98 metres above ground level. The floor area is 16,834 square metres based on future staff of 445. The building is designed to last 100 years.