 The building was erected in 1863 for Ernst Mix, a soap manufacturer, as a complex of two buildings.In 1905, the building was expanded to the south with a residential annex in the Art Nouveau style, richly decorated with animal figures by architect Fritz Weidner, a German builder who came to Bydgoszcz at the end of the 19th century.Weidner building activity in the city was focused between 1896 and 1914.