In a penthouse, the cooking, living, bathroom, and sleeping areas flow seamlessly into one another and are openly integrated into the room. The shadow-white painted bookshelves with a silk-matt structure feature a sliding door made from antique wood. Audiovisual devices are hidden behind this door. The back walls of the bookshelf can be fitted with lighting, if necessary, which creates new color impressions. The bookshelf follows the architectural shapes of the house and emphasizes the deep nook shelves. Every single element is custom-made.