Exclusive 2500 sq. ft luxury residence, fully renovated and brand new, located on one of the most iconic streets in the Salamanca-Castellana district, N ez de Balboa. Set on the fourth floor of a grand 1944 building with a stately entrance, concierge service, and central heating. This elegant home offers a modern layout with classic charm: entry hall, expansive living room with three distinct areas and large windows, dining space, and a fully equipped designer kitchen with island and laundry room. Includes a guest bath. The sleeping area features four en-suite bedrooms with large windows overlooking interior courtyards, providing abundant natural light. High ceilings, solid wood floors, lacquered doors, travertine marble baths, motorized blinds, and advanced home automation add to its appeal. Air conditioning with individual room controls. A storage unit is included. Surrounded by museums, shopping, and fine dining - ideal for living or investment in Madrid's most prestigious location.