In 1939, the castle came into possession of the city of Berlin. After World War II, the castle first became a facility of the Soviet army, then a youth hostel. In between, it was used as a storing location for Universum Film AG. Additionally, many families found a new home there after the Russians cleared out Berlin and Neubabelsberg. One of the families was the family of an ex-mayor of Berlin. In 1963/64, Max Taut rebuilt the castle by adding a glass bay to the two lower floors. Between 1964 and 2003, the castle was used as a youth meeting place. Since 2003, the castle is home of the Sozialpädagogische Fortbildung Jagdschloss Glienicke.