Carla asked if it made sense to incorporate into her single room - where she already lived - the space of the attic above. At our first meeting, observing the sobriety and poetry with which she inhabited that room convinced us the proposed intervention would be worthwhile. Through the incorporation of the attic, a very small footprint - 18 sq m in plan - became an apartment, though minimal. The new height of the room, with a pitched roof ranging from 3.5 to 5.5 metres, made it possible to create two levels, clearly organising the different domestic functions. At the lower level, the sofa area sits beneath the low mezzanine in whitewashed oak boards on a steel structure. By contrast, the kitchen, in white wood with a stainless steel worktop, rises vertically, maximising storage for utensils and objects. The bathroom is minimal and incorporates a compact laundry space. A staircase with alternating treads in whitewashed oak, designed to also accommodate the TV and refrigerator, leads to the mezzanine, where the bed, bookshelf and walk-in wardrobe are arranged. The approach consists in defining spaces by containing their volume of air, so that functions are not perceived all at once. The continuity of materials contributes to a fluid spatial sequence. Natural light plays a key role, filtering through the single window of the original room, complemented by the zenithal light of two new roof windows. Artificial lighting, provided by wall-mounted or pendant fixtures, accompanies and shapes each space.