This open-plan duplex apartment in central Paris was not exploiting the potential of its terrace, located at the very top, originally on the bedroom side. The layout offered a stifling succession of closed rooms, making the whole not at all luminous. Camille Hermand reorganized the space so as to enjoy the terrace on a daily basis, and opened up the surface area. The kitchen was moved to the upper level, near the few steps leading to the outside. The surface area was large enough to extend into a small living room. The walls of the mezzanine were removed to create a railing overlooking the large living room below. Also on the lower level are the entrance, a suite with dressing room and bathroom, as well as a glazed guest bedroom/study and a shower room. The soft tones of white and pink, and the sober treatment of light wood, give way to an extraordinary view over the rooftops of Paris and its monuments, a real asset of this apartment. The result is luminous and warm, thanks to the use of antique elements, exposed beams and old floor tiles in the staircase. Photos © Agathe Tissier.