Thorne Island, a historic fortified island located off the coast of Pembrokeshire, Wales, is on the market for £3 million. The property, which spans 2.49 acres, features a Grade-II listed fort with over 8,000 square feet of living space, offering seclusion and unique amenities.
Access to the island is available by helicopter via a dedicated helipad or by boat, with a private jetty and five sea moorings provided. The fort itself includes five bedrooms, capable of sleeping up to 20 guests. Three of these bedrooms are doubles with en-suite bathrooms and sea views, while another overlooks Angle Beach and has a wood-burning stove. The fifth bedroom is centrally located. The property also contains several bathrooms, workshops, boiler rooms, and storage areas. A glass-fronted office space is situated on the western cliff edge.
Interior features of the fort include exposed brickwork, sash windows, vaulted ceilings, and a wood-burning stove. The property has undergone updates, including new flooring and heritage glazed sash windows. An open-plan living and dining area is designed to accommodate a large number of people.
The island is registered as Hotel & Premises for business rates, suggesting potential for commercial use. Outdoor amenities include a courtyard with a lawn, a rooftop bar, a games room, and a large terrace area suitable for gatherings. The surrounding waters offer opportunities for exploring caves, enjoying sandy beaches, fishing, and water sports.
Thorne Island is self-sufficient, operating off-grid with renewable energy systems. These include a 250,000-liter rainwater harvesting system, a PV solar array with 100kWh battery storage, and air source heat pumps for hot water and underfloor heating.