A light-filled duplex, open to the rooftops and the cathedral. There are places you discover. And others you feel immediately. At the top of an old Bayonne building, in the intimacy of a top floor, this duplex unfolds nearly 100 square meters like a refuge suspended above the city. Here, everything plays out in the dialogue between materials, light, and perspectives. From the first steps, your gaze is drawn to the verticality of the space. The open ceilings, the old beams, the white lines that capture the light: everything converges towards a central point--a light well that structures the space and sets the rhythm of life within. The living area is organized with a sense of naturalness. Open kitchen, raw materials, exposed stone, patinated wood... A restrained and sensitive design, where each element finds its place without ever overdoing it. The staircase becomes an architectural element in its own right. It accompanies the movement towards a more intimate, almost private level. There, the rhythm of the space changes. A wellness space unfolds, like an unexpected respite in the heart of the city, extended by a 15sqm terrace with direct access to the outdoors. And suddenly, the city opens up. Basque rooftops stretch as far as the eye can see, punctuated by half-timbered facades. And the cathedral emerges, monumental, almost unreal, in a striking confrontation. A presence. A landmark. An emotion. The perfectly designed terrace becomes a true living space: suspended, luminous, profoundly urban. In addition, and with a separate entrance, a 25sqm studio intelligently extends the uses of the space. A welcoming area, an independent pied-à-terre, or a source of rental income... It introduces an additional dimension, both practical and strategic. A rare place. A place of sensations, more than just space. A place where the architecture reveals the city as much as it showcases it.