Apartment house Grada?ka that located in Ljubljana, Slovenia, was designed by Sadar Vugais Arhitekti. The vertical arrangement of these apartments is highlighted by the organisation of the living area, which is one-and-a-half or two storeys high. This displacement makes each unit different from the other eleven and produces a variety of apartments. The facade is made of three different materials: a stone face, which outlines individual apartments, a combination of reflective and transparent glass panels which either reflect the surrounding area into the apartment or reveal the interior of the apartment to the surrounding, and fibre glass.
The thin layer of the facade acts as a mediator, not only between the interior and the exterior, but also between the surroundings of the building and the micro-cosmos of the apartments inside the building. The different urban lifestyles of the interior are externalized through the glass surfaces, and the characteristics of the context are simultaneously projected onto the facade.