Exclusive 414 m² property in one of the best areas of Madrid, designed by a renowned interior design studio with luxury finishes in dolomite marble and natural oak wood. This residence offers spacious areas with high ceilings, and natural light flooding the interior through large windows facing East and North.It features an integrated living-dining room, a fully equipped designer kitchen with high-end appliances and a wine cellar, as well as a second independent kitchen with a laundry area and service bed. The night zone includes 3 en-suite bedrooms with built-in wardrobes and designer bathrooms, maintaining consistent finishes throughout the home. Equipped with the latest technology such as the Casambi system for lighting control and B&W sound system, this property ensures comfort and energy efficiency with underfloor heating and cooling.The building, constructed in 1964, has three orientations and well-maintained common areas. It includes two storage rooms, a parking space, and concierge service every day of the week. Luxury and comfort in a prime location on the Castellana.