Until the end of World War II, only a small wealthy Swedish elite could afford vacation houses—often both a large seaside house and a hunting cabin up north. During the rapid urbanisation in the 1950s and 1960s, many families were able to retain their old farmhouses, village cottages and fisherman cabins and convert them into vacation houses. In addition, economic growth made it possible even for low income-families to buy small lots in the countryside where they could erect simple houses. Former vacation houses near the large cities have gradually been converted into permanent homes as a result of urban sprawl.