In May 1913, the Deutsche Gesellschaft für Kaufmannserholungsheime inaugurated the "Kaiser-Wilhelm-Heim" in Wiesbaden as the third newly built recreation home for employees from industry and commerce. The society had acquired the property, which was located around 1.5 km from the Chausseehaus railroad station, from the Biebrich magistrate.

The new building, designed by Wiesbaden architect Paul A. Jacobi, made an imposing impression on the opening guests in 1913; however, the interior was rather modest and was intended to reflect the tastes and habits of employees and small merchants. On the first floor, in addition to a dining room for 200 people, there were common rooms such as a smoking room for men, a ladies' room and a writing and reading room, while the living rooms were located on the upper floor.

After the outbreak of the First World War, the company made the home available to wounded soldiers from trade and industry, so that the vacation business came to a standstill. It was not until the 1920s that the number of guests rose steadily again, as vacations in the company's convalescent homes were very popular with employees from trade and industry.

Under National Socialism, the Gesellschaft für Kaufmannserholungsheime was assigned to the Nazi organization "Kraft durch Freude (KdF)" and placed under the control of the "German Labour Front". During the Second World War, the home was again used as a military hospital and between 1945 and 1949 it was also initially used as a hospital.

It was not until 1949 that the then "Taunusheim" was able to resume full operation as a recreational facility. In 1965, the house was given its current name after the merchant and founder of the Kaufmannserholungsheime, Joseph Baum. Since 1984, it has been used as a training center for the Hessian Ministry of Justice and is home to the H.B. Wagnitz Seminar.