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.
The Barony of Rosendal lies in the grounds of the old noble estate of Hatteberg, on the north side of the Hatteberg river, around one kilometre up from the sea. The three noble estates Seim, Mel and Hatteberg constituted the core of the large estate taken over by Ludvig Rosenkrantz in 1662, after he was married to Karen Mowat in 1658.