With the first acquisitions of 6 hectares of vines in 1942, and purchase of the chai of Château Saint-Pierre, Martin added to the estate over the years with land bought from the surrounding classed estates, including châteaux Saint-Pierre, Beychevelle, Léoville-Poyferré, Gruaud-Larose, Léoville-Barton, Ducru-Beaucaillou, Lagrange and a Saint-Julien property of Duhart-Milon, making up its present size.