Also referred to locally as Chatellenie du Bouchet or Le Clos du Bouchet, Le Clos du Bourg is a six hectare vineyard and a true clos, being surrounded by an ancient stone wall. It is acknowledged as the oldest cru in the appellation given eighth century records belonging to the Collégiale de Saint-Martin de Tours which mention the site by name. Prior to Gaston acquiring the vineyard in August 1953, it was owned by Russian born Charles Vavasseur, distinguished, along with Gaston, as a longstanding Mayor of Vouvray.
The vineyard sits on the first coteaux above the town (le bourg) and directly behind the town church. The soil here is less than one metre deep, allowing the vines easy access to the tuffeau directly below. Le Clos de Bourg is recognised as the most likely source for moëlleux, from grapes that have been affected either by botrytis or passerillage. The new 2023 sec is delicious, plenty of fruit balanced by good acidity.