The Dragon Fly was created through a free creative process focused on environmental issues. The base parts are made in 3D concrete printing with XtreeE, the central stringer is in steel and the wood of the steps comes from an ash tree felled on the property. The steps of the stairs become more and more organic. An organic aesthetic choice was justified because the staircase was made in a villa hidden in the woods of Brussels, cradle of Art Nouveau. It becomes the meeting point for the family around the fireplace, serving as seating, but also a log rack, a platform and a chest.