A unique investment opportunity in the heart of the Alto Douro Wine Region, where heritage, signature architecture and hospitality come together in a natural setting of extraordinary beauty. Located in Oliveira, Mesão Frio, this historic estate extends across approximately 21 hectares, surrounded by centuries-old vineyard terraces, woodland and the iconic landscapes of the Douro region, recognised as a UNESCO World Heritage Site. Dating back to the 19th century, the property benefits from an approved architectural project designed by renowned architect Carlos Castanheira, envisioning its transformation into a 4-star agritourism resort dedicated to wine tourism, exceptional hospitality and exclusive experiences. The project comprises approximately 4,000 sqm of construction and 24 accommodation units, combining the restoration of the historic manor house with the construction of a new architectural wing, seamlessly blending tradition with contemporary design. The concept includes: - 24 accommodation units distributed between the manor house and the new building; - Restaurant, bar, lounge and social areas; - Historic wine cellar and event space; - Spa, gym and yoga studio; - Elevated swimming pool integrated into the hillside; - Outdoor leisure and relaxation areas; - Potential to revive the estate's winemaking heritage. The historic manor house will accommodate five guest units, a restaurant, lounge, bar and dedicated wine and event spaces. The new building will provide a further 19 units, while the wellness facilities and elevated swimming pool will take full advantage of the property's distinctive topography. The development potential may extend beyond the currently approved architectural project. Opportunities for an additional 26 accommodation units are under study, distributed across existing ruins, woodland areas and land near the watercourse, subject to the necessary assessments and approvals. The estate's scale, historical character, architectural pedigree and versatility make it particularly attractive to hotel groups, wine tourism operators and investors seeking to establish a luxury hospitality destination in one of the world's most internationally recognised wine regions. More than an estate, this is an opportunity to create a landmark destination in the Douro, where heritage, nature and hospitality converge in a truly distinctive concept.