In 1919 a Communist Party was founded in Biel, but it remained a minor party in the town. In 1921, the Social Democrats won a slim majority in the city councils. Under the leadership of the Social Democratic Mayor Guido Müller "Red Biel" began a series of socialist community experiments. During the 1930s the entire neighborhood around the train station was redeveloped according to the social planning theories of the era. The Volkshaus (People's House), built under the direction of Edward Lanz between 1928–32, is an example of the "new building" style and a symbol of the Social Democratic era of the city.