The circular building was erected in 1925/26 by the postal architects R. Vorhoelzer, F. Holzhammer, and W. Schmidt for the central parcel sorting facility in Munich. W. Schmidt described the building as a unity of machine, function, and form. At the end of the 1960s, its function was rendered obsolete by a larger new building; the sorting facility was dismantled and scrapped, and the building stood empty. From 1982 to 1985, the building, which had since been listed as a historical monument, was renovated. It was given a new purpose with the addition of a central postal canteen, a library, meeting rooms, and social spaces. In contrast to the original ground-floor access, it is now accessible from the main postal headquarters and the surrounding buildings via two bridges and two walkways constructed of steel and glass.
