On the quiet upper stretch of Madrid’s Paseo de la Castellana, within a period building that retains its original grandeur, this residence occupies the entire top floor. The apartment has been rebuilt from the structure up, allowing contemporary living to unfold within the proportions and material language of the original architecture. A private lift opens directly into the entrance hall, where oak panelling and stone flooring establish the tonal continuity that runs throughout the home. From here, the space expands into a sequence of interconnected rooms, each defined by its own atmosphere while maintaining visual flow. The living and dining areas are oriented toward the terrace, a 451 m² outdoor extension of the interior. Floor-to-ceiling doors dissolve the boundary between inside and out, framing views of the city’s rooftops. The kitchen, positioned as a central node, is finished in honed marble and custom cabinetry, with integrated appliances that preserve the clean lines of the design. A secondary living area, conceived as a more intimate space, offers an alternative setting for daily use or quiet retreat.