City hall of Düren
In 1989, the building was listed as an architectural monument. The city hall underwent ground-up refurbishment from 2012 to 2015 under the supervision of "programat4architektur", Kassel. GU products were used during the refurbishment. The city hall contains around 200 office and ancillary rooms on an internal area of approx. 41,000 m2 which accommodate the entire city administration. There is also a cashiers' hall, three conference rooms, rooms for the city and district archive and other municipal facilities. The prominent municipal coat of arms above the city hall clock consists of 25,000 Milan glass tesserae.
The city hall contains around 200 office and ancillary rooms on an internal area of approx. 41,000 m2 which accommodate the entire city administration. There is also a cashiers' hall, three conference rooms, rooms for the city and district archive and other municipal facilities. The prominent municipal coat of arms above the city hall clock consists of 25,000 Milan glass tesserae.
GU solution:478 Vertical-Pivot windows, 2 automatic sliding doors, 250 ixalo SE locks, 56 double knob cylinders, 30 wall readers, master key system consisting of 300 janus cylinders