A free-standing spiral staircase forms the centrepiece of the house and the three zones. It curves upwards with an elegant sweep through 180° to the upper floor. Its treads are covered in shell limestone, continuing the flooring that extends throughout the ground floor. The steps appear to float as they are attached only on one side to the inner stringer. This sense of lightness is further emphasised by the absence of a second handrail. The core of the staircase is illuminated by suspended drops of light – continuing the theme of floating lightness. Yet there is more to catch the eye here: on the upper floor, a bold floral textile wallpaper encloses the staircase. With its Baroque imagery, it offers a large-format response to the smaller painting in the seating niche opposite the staircase.