Located in one of the best areas of Madrid, this exceptional property combines international modern design with top-quality finishes. Created by a renowned interior design studio, it features noble materials such as dolomite marble and natural oak wood, giving the home a unique character.High ceilings and custom-made Italian furniture, along with advanced technologies such as the Casambi lighting control system and B&W sound system, create an atmosphere of luxury and sophistication. The property enjoys excellent natural light thanks to its large windows facing East and North on the exterior and West on the interior.The layout highlights a spacious reception area with an integrated dining room, seating up to twelve people, and a large living room that opens to a terrace with unobstructed views. The fully equipped kitchen, with high-end appliances and a wine cellar, seamlessly connects to the living room, while a second independent kitchen offers added functionality, including a laundry area, a service bed, and a bathroom, transforming this space into an independent apartment.The sleeping area consists of three bedrooms with en-suite bathrooms, spacious closets, and modern bathrooms finished with marble and wood. The Casambi system also allows the lighting to be adapted to the needs of each moment, creating relaxed and comfortable environments. Underfloor heating and cooling, powered by aerothermal energy, provide exceptional comfort with reduced energy consumption.Built in 1964 under the principles of functionalism, the building stands out for its free-standing design, providing three orientations for each apartment. The common areas are meticulously maintained, and the property includes two storage rooms, a parking space, and porter service every day of the week.A unique opportunity to enjoy the utmost luxury and comfort in one of the most exclusive areas of Castellana.