<|start_header_id|>assistant<|end_header_id|> Here is a summarized version of the property description in a single paragraph: Number 3 The Castle is a luxurious and unique property located within the historic walls of Stanhope Castle in County Durham. The property was built in 2015 and features a mix of modern luxury and original character, including a spacious entrance hall, large semi-open-plan sitting room, kitchen, and dining area. The property has four bedrooms, including a principal bedroom with an en-suite bathroom, and a sauna room. The property also features a courtyard/garden area with picnic benches and a hot tub, as well as approximately 0.34 acres of development land with pre-approved planning permission for five properties. Stanhope is a charming market town surrounded by the picturesque North Pennines Area of Outstanding Natural Beauty, with a range of local facilities and amenities, and easy access to major regional centers and airports.