Southwark Station was designed by Richard MacCormac. A tunnel lower level concourse lies between the two platforms, illuminated by glass and steel "beacons" at each end and faced with stainless steel panels. Stairs lead up to a section of high floor in the central area of the tunnel, where narrow escalator shafts then head sideways to the intermediate concourse one level up. The intermediate concourse is the centrepiece of the station: 16 metres high with a glass roof that allows daylight to enter deep into the station. It is faced with a spectacular glass wall, 40 metres long, consisting of 660 specially cut pieces of blue glass, designed by Alexander Beleschenko.