<|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 in a peaceful rural location, with beautiful riverside gardens and 50ft of bank along the river Mimram. The property, currently a one-bedroom single-storey building, has a certificate of lawfulness as a separate dwelling and permitted development plans to add a second storey and extend the ground floor. The plans include two bedrooms, a bathroom, and en-suite on the first floor, with a kitchen/dining room, utility room, sitting room, study, and downstairs cloakroom on the ground floor. The property has a large gravel driveway, parking for three cars, and a fenced-off area for the Klaugester system. The riverside gardens are a pleasant feature, with a jetty perfect for sitting and enjoying the surroundings. The property also has riparian rights and is located near Welwyn North Station, with easy access to local rail and road links.