In 1871, the Grainau Benefit acquired Lake Badersee and built a house here with a restaurant and viewing platform. Even King Ludwig II was already a guest here with his mother Marie of Bavaria. However, the king decided that no priest should carry out a restoration and so in 1877 a new owner was found who expanded the complex.

An entrance portal with a post office to Lake Badersee welcomed guests around 1890.

The company was converted into an AG and a first hotel was built. In 1912, the owner changed again and managed the old Badersee until 1974.

According to legend, King Ludwig II sinks a life-size mermaid made by sculptor Brechtl around 1900 in Lake Badersee.

At the end of the 19th century, a restaurant and a hotel were built on Lake Badersee.

At the beginning of the 20th century, the hotel was enlarged facing the lake and offered more rooms for holidaymakers.

In front of the majestic mountain scenery of Waxenstein and Zugspitze, the hotel sits right on Lake Badersee — around 1910.

Lake Badersee is fed by cold, fresh, clear springs and offers barges a unique rowing experience — framed in a perfect natural setting. Nobel Prize winner Marie Curie carried out hydrological investigations in the lake around 1914.

The Hotel Badersee offers guests a shuttle service with its own convertible bus from Untergrainau train station and also from Garmisch to the hotel — around 1918.

The impressive extension built in the 1930s and a large lakeside terrace offer walkers a view of the Tyrolean Ammer Mountains across Lake Badersee.

In the 1960s, the hotel opened with large windows to Lake Badersee during a comprehensive renovation of the building.

Even in bad weather, the winter garden offers an unobstructed view of Lake Badersee — furnished in true style in the spirit of the 1960s with kidney tables.

This year, the former Bavarian Raiffeisen Association acquired the hotel in order to build a training center for the Bavarian Cooperatives. As a result, the building was converted and expanded.

In 1996, the old lake house was demolished and the current lake house with 52 spacious rooms, function rooms and the Werdenfels restaurant was built in its place. The house was now open to the public and was categorized as 4-star at the end of 2010.

In 2012, the old forest house was completely gutted and 87 modern country house rooms, the beautiful country house spa, a day bar and an atrium with meeting rooms were created.

After 50 years as a training center run by the Bavarian Cooperatives, the historic hotel on Lake Badersee in Grainau has received a new owner. In 2025, Meine Volksbank Raiffeisenbank eG took over the house.