Next to the palace of the Ballestrems in Pławniowice there is a slightly smaller building erected at the same time. It features Eclectic architecture with strong neoGothic elements. This is called “Kavalier Haus”, which means “Bachelor's House”. It built was by Franz Ballestrem for his son, Leon. This building, which served as his temporary lodgings, later became a luxurious residence, designed for guests coming to Pławniowice.