<|start_header_id|>assistant<|end_header_id|> Here is a summarized version of the property description in a single paragraph: This unique opportunity allows you to build your own detached cottage with idyllic riverside gardens along the beautiful river Mimram, just a short drive from Welwyn North Station. The property currently has a one-bedroom single-storey building with a certificate of lawfulness as a separate dwelling, and permitted development plans to add a second storey and extend the ground floor footprint. The plans have been signed off by the council, and the owner has also drawn up full plans for the foundations, which have been approved by the council's buildings regulations department. The finished property will have two bedrooms, a bathroom, and en-suite, as well as a kitchen/dining room, utility room, sitting room, study, and downstairs cloakroom. The property also has a large gravel driveway with parking for three cars, a separate fenced-off area for the Klaugester system, and beautiful riverside gardens with a timber jetty, perfect for watching wildlife or entertaining. The property is located in the tiny hamlet of Archer's Green, near Tewin village, and is close to local rail and road links, making it ideal for those who want to live in a rural setting but still be close to civilization.