Central hall and family living space giving access to all the rooms within a typical apartment found within a Roman insula that represents the standard form of middle‐class and working‐class housing in Rome and other cities throughout the empire. Often placed on one side of the house/apartment, the medianum looked either out onto the street or to the inner courtyard of the insula. It was a large, pleasant space with plenty of air and light compared with the dark rooms beyond. Only from the 1st century ad did glazed windows start to appear. In poorer areas apartments were kitchenless, so cooking was also done in the medianum.