 The station was designed by Munich-based architecture firm Raupach Architekten.The design makes reference to the changing colors typical to the HafenCity, caused by reflections throughout the day by the wharf buildings' red brick and the ship hulls' iron and steel.Groundbreaking on the branch of the U2 from Jungfernstieg to HafenCity, now known as the U4, took place on 23 August 2007, with construction beginning in February 2008.