Château Nénin’s vineyards grow on a single block of land with the exception of one plot. In Pomerol, where it is rare for an estate to exceed 10 hectares, Château Nénin’s vineyard is considered very large, with 32 hectares of vines in production. As a consequence, its terroir includes the many, diverse soils that characterize Pomerol. It is mainly made up of Oligocene deposits covered by Dordogne alluvial gravelly formations; siliceous clay and gravel, quartz, granite, iron-deposits and basalt pebbles. Château Nénin’s vineyards grow on the great clay-gravel terroirs of the Pomerol Plateau. On the eve of the 1997 harvest, Jean-Hubert Delon purchased Château Nénin, which had belonged to his cousins, the Despujol family, since 1847. A major restructuring was immediately undertaken. The pruning and trellising methods were reviewed, the land was drained, the vines were replanted or uprooted, and the equipment modernized. The ageing and storage cellars were extended and completely re-fitted, and air conditioning was added. A new vat room, furnished with state-of-the-art equipment, was built thereby completing the total transformation of the property.