Projet MARCADET is the renovation of a 50-square-meter apartment in the 18th arrondissement of Paris by Romuald Fontaine Architecture. The project works across 4 primary materials: walnut wood, polished concrete, marble, and zellige. Each appears in spaces where its specific qualities are most legible, creating distinct material characters across the apartment without imposing a single uniform finish throughout.

The texture of the material palette is the project's central formal interest. Polished concrete and marble carry hardness and reflectivity; walnut and zellige introduce warmth and surface variation at a finer grain. The combination is calibrated to be rich without being heavy, with the warm tones of the palette holding the different surfaces in a coherent register.

Bespoke furniture and arrangements were designed specifically for the project, and the selected pieces share a preference for gentle curves rather than sharp geometry. The curves serve a spatial function in a compact apartment: they soften the reading of tight corners and prevent the interior from feeling assembled from rigid parts. The result is an interior where material density and formal softness work in the same direction.