Thorne Island, a private 2.49-acre islet off the coast of Pembrokeshire in Wales, has been listed for sale at £3 million. The property includes a Grade II* listed coastal fort, a helipad, a pub, and five bedrooms, making it one of the most unique residential offerings in the UK.
Property Features and Accommodation
According to the Rightmove listing, which invites offers of £3 million and above, the island boasts "complete seclusion with all the benefits of a waterfront location with its own boat moorings, extensive accommodation and entertaining spaces, bar and heli-pad." The fort spans 8,000 square feet of accommodation, featuring an open-plan reception, dining, and sitting room with exposed brickwork, vaulted ceilings, and a wood-burning stove. The kitchen is modern and open-plan, with an adjoining snug.
There are five bedrooms, including three large double en-suite bedrooms with mezzanine floors, sitting areas, and sea views. A fourth double bedroom also offers sea views and a wood-burning stove, while the fifth bedroom centrally located could be subdivided. The bar is on the rooftop with a terrace, ideal for entertaining.
Sustainability and Off-Grid Living
The island is completely off-grid, powered by modern renewable energy systems including a PV solar display with 100kWh battery storage and air source heat pumps for hot water and underfloor heating. The listing describes it as having "the most modern renewable energy systems."
Location and Commercial Potential
Accessible only by boat to a private jetty, Thorne Island is registered as a Hotel & Premises, allowing commercial use. The listing highlights its position at the entrance to one of the UK’s largest natural harbours, offering "peace, privacy and outstanding panoramic coastal views." Surrounding the island are caves, fishing spots, rocky outcrops, and sandy beaches. The town of Milford Haven is a short boat ride away, offering shops, pubs, restaurants, and schools. Pembroke is 9 miles east with additional services.
Market Context
This listing provides a glimpse into luxury real estate for the ultra-wealthy. The property is being marketed by Strutt & Parker. The island's unique combination of historic fortification, modern amenities, and commercial potential makes it a rare opportunity in the UK property market.
