With property prices soaring in recent years, the idea of buying your own home for £17,000 might seem like a dream come true.

But there's a catch - it doesn't have a roof.

The "ruined shell" of 400-year-old Ty Du near Llanberis, Gwynedd, lies in the wooded foothills of Wales' highest mountain, Yr Wyddfa.

It dates from the 13th Century and has been home to north Wales' strongest man and the poet Dewi Arfon, according to Auction House.

The house is thought to have begun as a platform house, being rebuilt in the 17th Century as a storied house.

Auction House said it is listed in the Inventory of the Royal Commission as an important domestic building in the parish.

Other notable past residents include Godfrey Goodman, the Bishop of Gloucester, who lived at Ty Du after being banished by Oliver Cromwell

The auctioneers said the ruined property has intact walls to eaves level, as well as two ruined cottages, a smithy and old shop.

The owners on Anglesey, they added, have preserved the A-frame roof and other timbers.

At the back of the house there is an old pack horse trail that once connected Llanberis to Caernarfon.