The apartment is a small 30-m2 cell in which the task was to organise a living space for a single male person. The most important task was to create a living room as large as possible with additional service spaces: entrance, kitchenette, workspace, bathroom, bedroom, audio & video space. The size of the services is reduced to the minimum. They are displaced around the main room and form a sort of enclosed cupboard. Sliding doors are made of semi-transparent Perspex (polymethil metacrilate) with a blurry print.. During the daytime the envelope appears as a totally opaque, solid wall. At night the envelope becomes a bright light box, creating a nocturnal city lights atmosphere.