After Laupen became part of the Canton of Bern, the castle was the Bernese administrative headquarters. The castle stairway was expanded in 1580–99. The administrative offices in the castle were expanded in 1648-50 and it was totally renovated in 1983–88. During the 15th and 16th centuries, the bailiwick of Laupen expanded several times as Bern acquired more lands along the Sarine and Sense rivers. Until 1798 the castle was the official residence of bailiff of Laupen. The bailiwick of Laupen was reorganized into the Laupen District in 1803, which became part of the Bern-Mittelland District in 2010.