The Baronial style peaked towards the end of the nineteenth century, and the building of large houses declined in importance in the twentieth century. It continued to influence the construction of some estate houses, including Skibo Castle, which was rebuilt for industrialist Andrew Carnegie (1899–1903) by Ross and Macbeth. There was a lull in building after the First World War, and social change undermined the construction of rural country houses. Isolated examples of "castles" include houses that combine modern and traditional elements, such as Basil Spence's Broughton Place (1936) and Glenskirlie Castle, Stirlingshire (2007).