With two new buildings, the company headquarters of the SBB (Swiss Federal Railway) are currently under construction in the WankdorfCity area of Bern. The construction sites cover around 35,000 m² and are located north of the Bern Wankdorf suburban railway station between the railway tracks and A1 motorway. The project sets a visible marker for the cultural change within the SBB. The building facades are made of coloured, mobile glass louvres that give the building a different appearance depending on the position of the sun.