Shire Hall, a 125-year-old Grade II-listed building, sits on a prominent site overlooking the Afon Cefni river in Llangefni. Built in 1899 for £4,453 and extended in 1912, the grand stone property has served various uses over the years, most recently as office space. But after a devastating fire, the mansion now stands derelict and inaccessible.

Despite its current state, with a collapsed roof and serious structural damage, the property has attracted interest thanks to its development potential. Planning permission is already in place to transform the building into six spacious riverside townhouses, each planned over four storeys and approximately 150 square metres in size.

Auctioneers Paul Fosh Auctions describe the site as a rare opportunity for ambitious developers.

Gemma Vaughan of the firm said: “This is a most unusual and exciting opportunity for an investor or developer to acquire a historic building in the heart of Llangefni. Despite its current condition, the site’s potential is considerable.”

Set on a plot of around three-quarters of an acre, Shire Hall occupies a prime riverside location. While permission has been granted for six homes, Vaughan noted that the site may support a more ambitious scheme if the building is partially or fully demolished. Discussions with the local authority have suggested support for an expanded redevelopment.