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.
Today Tyssedal appears like a classical industrial community, a picture of modern Norway from the turn of the former century until today. A/S Tyssefaldene was established in 1906, and on 1 May 1908 Tyssedal power station was put into operation. The work on the first stage of the facility was completed in a short time, with a work force of 500 men. They built water tunnels, regulation reservoirs, power station, penstocks, harbour, cableways, office buildings, houses and 6 km of power lines in the wild mountains above Odda to provide the new melting plant with power.