Castellana 45 is located in one of the most representative areas of Madrid, a residential environment full of history and elegance, just steps away from Almagro, Serrano, and the Embassy of the United States.The building was constructed in 1928 by the architect Severiano Sánchez Ballesta and stands out for its classic facade with French influence. It has been completely renovated inside to accommodate ten apartments with three to four bedrooms and two unique penthouses, with the possibility of customizing both the layout and finishes according to each client's preferences. The high ceilings, exceeding three meters, and open spaces with large windows and kitchens equipped with advanced technology bring modernity without sacrificing the original character of the property.Each apartment has been designed with attention to detail, incorporating decorative moldings, noble materials, and contemporary solutions. The balconies allow for clear views of Paseo de la Castellana and offer a pleasant connection between the interior and urban landscape, enhanced by abundant natural light.The building has common areas focused on well-being, such as a gym, wellness space, concierge service, valet parking, and a lobby. Castellana 45 combines the privacy of a quiet residence with the vitality of a big city. Its strategic location allows easy access to business centers, museums, shopping areas, schools, and main communication routes such as the M-30 or the A2. The surroundings also offer a diverse cultural, gastronomic, and leisure offer, with excellent connections to the airport and public transportation.