In the proximity of the Ostbahnhof of Berlin two apartment towers with up to 27 floors for living, office and commercial use develop. Around the two multistoried buildings several buildings with heights up to seven floors are planned. In total over 60,000 m² floor area will be realized. The buildings are established in in-situ reinforced concrete. The base plates and the basements with the underground parking are manufactured due to the existing groundwater level completely as a waterproof concrete construction. The foundation for the two 100 m high towers been made by a combined pile plate foundation (KPP) with up to 20 meters long drilling piles.