The Electoral Office Building in Daun is a historic building located on the basalt cone of an extinct volcano in the heart of the district town in the Volcanic Eifel region. Today, it is used as the Electoral Office Building Dauner Burg, a castle-hotel located at Burgfriedstraße 28.
The site has a long history, dating back to 700 BC as a Celtic refuge and around 50 BC as a fortified Roman lookout. The actual Daun Castle, the ancestral seat of the Lords of Daun, was built towards the end of the 9th century. After the Thirty Years' War, the castle was destroyed in 1689 by troops of the French King Louis XIV.
The current Office Building was built in 1712 by Charles Joseph, Elector of Trier and Duke of Lorraine, as a hunting lodge and official residence, after parts of the castle had been restored. This official residence housed the Electorate of Trier's bailiffs and official waiters, who administered the large Daun district as administrative officials of the Elector of Trier. The building complex also included the tithe barn, built in 1740, which served to store the delivered goods.
After the end of the Electorate of Trier during the French Revolution in 1793 and the French occupation (1794–1815), the castle became Prussian state property. During this period, the official residence house was used, among other things, as the Royal Forestry Office and, for a time, even housed a prayer room for the Protestant congregation.
The state of Rhineland-Palatinate assumed sovereignty in 1948, until the city of Daun became owner of the castle in 1957. In 1978, the official residence house became private property. Between 1979 and 1981, the castle was expanded and extended into what is now the Schloss-Hotel Kurfürstliches Amtshaus, a first-class hotel that houses, among other things, a remarkable clock collection. The hotel offers its guests a combination of historic furnishings and modern comforts, as well as a wellness oasis with a pool and saunas.