The philosopher and theologian Johannes Müller commissioned the building, and Carl Sattler designed it with Müller from 1914 to 1916. The article describes a four-story castle with a hipped roof, a tower and a porch, and gives no materials or exterior dimensions. Müller lost control of it after the Second World War. In 1947 it served as a home for displaced concentration camp survivors.
It became known for chamber music in 1957. A fire on August 7, 2005 destroyed nearly the entire top floor of the main building, and the cause was a faulty electric blanket. It was rebuilt, with Christoph Sattler attributed, though the article marks that without a source.
It hosted the G7 summits of June 2015 and June 2022. It is a five-star hotel with 123 rooms and suites and a 300-seat concert hall.

Comments