Welcome to this exceptional duplex penthouse, a contemporary masterpiece located at Largo de Santos No. 15 in the historic Santos-o-Velho neighborhood of Lisbon. Spanning 6,652 sq ft (618 sqm), this sophisticated residence defines luxury living in one of Lisbon's most desirable areas. First Floor Elegance: The first floor is designed with expansive, sunlit living areas that flow seamlessly throughout the residence. Floor-to-ceiling windows bathe the space in natural light, creating a refined and airy atmosphere. At its heart is a state-of-the-art kitchen, complete with premium appliances and modern finishes, ideal for both everyday meals and gourmet dining. The floor also features a private movie room for an immersive cinematic experience, a well-appointed home office designed for maximum productivity, and an exclusive fitness space, perfect for maintaining an active lifestyle. A thoughtfully designed children’s playroom caters to family needs, while a full guest suite provides privacy and convenience. There is also a separate maid’s room with an en-suite bathroom for additional staff accommodation. The wrap-around balcony offers sweeping, panoramic views, making it an ideal space for outdoor relaxation or entertaining, while enjoying the mild, sunny climate of Lisbon. Second Floor Luxury: The upper level houses the master suite, a true sanctuary featuring a spa-inspired bathroom with a freestanding bathtub and a walk-in shower, all with stunning river views as the backdrop. A generous walk-in closet adds to the sense of luxury and space. In addition, there are two further spacious suites on this level, each thoughtfully designed to ensure both comfort and elegance for family members or guests. Modern Amenities: The residence includes eight bedrooms and seven bathrooms (five full, two half), with a range of premium features such as electric blinds, air conditioning, and central heating to ensure year-round comfort. With a south/west orientation, the penthouse is flooded with natural light throughout the day, enhancing its warm and welcoming atmosphere. Prime Location: Located in the heart of the picturesque Santos-o-Velho neighborhood, this penthouse blends historic charm with modern urban convenience. The area offers easy access to transportation, local shops, and essential services, ensuring that residents enjoy an unparalleled lifestyle experience. This is a rare opportunity for discerning buyers who seek refined comfort and luxury in one of Europe’s most captivating cities.