On Paseo de la Castellana, one of Madrid's defining thoroughfares, this ground-floor residence commands a substantial terrace overlooking the avenue and its tree-lined vistas. Set within a period building with lift access, the apartment has been conceived as a contemporary interpretation of classical proportions, where generous volumes and restrained materiality define the interior. The spatial sequence moves from the entrance through a luminous living and dining area that opens directly onto the 320 m² terrace—a rare expanse of outdoor space that functions as an extension of the home rather than a secondary element. The kitchen is positioned to serve both daily rhythms and formal gatherings, while three bedrooms and three bathrooms are distributed across the floor plan with careful attention to privacy and natural light. Materials and finishes reflect a commitment to understated quality, allowing the architecture and the relationship to the avenue beyond to remain the primary focus.