The Ådland house is one of the biggest medieval houses still existing in West Norway. It is constructed from unusually large, hard fir wood, beautifully oval-cut. One story links the cottage to the Gildeskålbakken at Orninggård (Lower Ådland); thus indicating that the cottage has been the medieval banqueting hall. The building has been dated back to the 13-1400s by carbon dating.
Numerous finds show that the settlement at Herdla goes back to prehistoric times, and the large estate at Herdla has enjoyed a central place in the nation’s history since High Middle Ages. As Ask, Herdla was part of the country estate Harald Hårfagre took over as he took command of the west of Norway.