Overview

• Estate agents Strutt & Parker have invited offers above £3 million for the 2.5-acre Thorne Island, marking its first formal sale listing since completion of renovation.
• Mike Conner purchased the derelict Grade II-listed fortress in May 2017 for £555,000 and directed five years of extensive restoration work.
• Restoration involved cutting through 16 ft of rock to install a biodigester, deploying renewable energy systems and sourcing building materials by helicopter.
• The estate now offers over 8,000 sq ft of accommodation, a helipad, a nightclub and published bedroom counts that vary from five to 40.
• Conner claims the venue can host up to 800 guests for large events, but no sale has yet been confirmed.