In the palace (Schloss Köpenick), which was built between 1677 and 1689, the Staatliche Museen zu Berlin had been showing the collections of the Kunstgewerbemuseum, that had remained in East Berlin since 1963. In 2004, after ten years of extensive renovation, the palace was reopened as the second location of the Kunstgewerbemuseum.

Furniture and decorative arts from the Renaissance, Baroque and Rococo periods are exhibited under the heading "RaumKunst". The selection of over 500 exhibits is determined by their original function in the living and representational culture of the 16th to 18th centuries in public, private and courtly life. The term "RaumKunst" (room art) encompasses all areas of interior decoration that served as wall and room decorations in bourgeois and courtly living spaces in earlier times: Tapestries, lacquer work, wall panels, leather wallpaper, baroque art cabinets, centrepieces, porcelain and silver. The ceiling paintings and the 29 stucco ceilings created by Graubünden masters have also been carefully restored.

Highlights of the tour include four remarkably complete, walk-in room panels, including the richly inlaid Renaissance panels from the Swiss Haldenstein Palace and Höllrich Palace, furthermore the silver buffet from the Berlin Palace and the restored Coat of Arms Hall. The baroque roof truss is a technical monument of special rank. Here you can see the study collection of metal utensils, faience, glass and porcelain. The basement with remains of the mighty north-east tower from the previous building shows the building and settlement history of the castle island. Multimedia explanations of the castle building and collection, a reading cabinet and the castle café idyllically situated on the shore complete the comprehensive offer.