A suspended room, an urban nest under which the city flows: upside down it does not take away space from everyday life but enriches the public space with a level sheltered from the street and in contact with the stars. Sharing and isolation are alternatives proposed in parallel, everything revolves around the staircase, the lower space is free around it and is suitable for gathering small groups of people during the day, on the upper floor the space is directed towards the sky, enclosed by a fabric perimeter.