English summary: The house XV B (also known as maison 49,19) in Megara Hyblaia, an antique small town nearby Syracuse, is one of the biggest housing complexes of Hellenistic Sicily. Spread around two courts, the house from the 3rd century B.C. possesses a great many of generously cut main rooms, but at the same time areas with installations for productive activities. Thereby it belongs to one of the especially interesting Hellenistic domestic architectures--under...