Underground wine cellars for the ageing of the vintage, with capacity
for two thousand barrels. A tunnel connects it with the rest of the
château’s underground cellars. Vines grow above the roof of the cellars,
and the impact on the surrounding countryside is minimal. The main
construction problem lay in the creation of a structure which would
provide a large subterranean space free of obstacles to the working of
the cellar, but was nevertheless capable of supporting the considerable
load represented by a two-metre thickness of cultivated soil bearing
down on the roof.The plan is octagonal, set within a square with
a side of 50 metres which forms a crypt held up by columns and lit by a
central skylight that emerges above ground in the middle of a vineyard.
The roof of the cellars is slightly sloping, with beams 14 m (46’) in
length radiating from the centre. A gallery running round the space for
the storage of barrels allows visits without interrupting the delicate
processes taking place in the interior. The premises for bottling,
tasting and storage have been constructed alongside the cellars. The
design of the different elements of the wine cellars, such as doors,
columns, balustrades and so on, is based on variations on the geometry of the octagon. The construction ins entirely of architectural concrete, poured in situ.