Throughout the twentieth 20th century the Bouchards concentrated mainly on looking after their estate rather than expanding it. Though the House of Bouchard Père & Fils, like the rest of France, was faced with the twentieth 20th century dramas (the First World War, the 1930s crisis, the Second World War), they managed to preserve the whole of their possessions accumulated by nine family generations.

Beginning of the twentieth 20th century : After the death of his wife Marthe Saverot-Bouchard, Joseph Bouchard married her niece, Marie Perruche de Velna. She added to Domaine Bouchard Père & Fils a vineyard located in Volnay, including parcels in "Frémiets", "Chanlins", "Caillerets" and "Taillepieds".

1909 : Antonin Bouchard bought over 7 hectares of vineyard in Grand Cru "Le Corton" located in Aloxe-Corton, classified "Cuvée hors ligne" (exceptional) by Dr Lavalle. According to Joseph Bouchard with regard to the soil, subsoil and altitude of this vineyard, the parcel could grow not only Corton but also Corton-Charlemagne in its highest section.

Expansion of the estate to Savigny-les-Beaune with the purchase of nearly 4 hectares of vineyard in the Premier Cru "Les Lavières".

On the eve of the First World War, after almost two centuries of existence, Bouchard Père & Fils owned an outstanding property in Beaune, spread over 35 different vineyards for a total surface of over 50 hectares, including the following monopolies :

- Grèves Vigne de l'Enfant-Jésus
- Clos de la Mousse
- Clos Saint-Landry

1950-1960 : Several exchanges of vineyards occurred between Maison Bouchard Père & Fils and other vineyard owners, demonstrating the House's constant goal to add the best-located neighbouring parcels to their property.

From 1969 : The policy which consisted in buying selected plots was followed in full. The Domaine further expanded by acquiring some vineyards in Meursault, Chambolle-Musigny and Gevrey-Chambertin.

1972 : Acquisition of a parcel located in Grand Cru "Chambertin", which "shows to the highest extent all the qualities that contribute to making a perfect wine, body, colour, bouquet, finesse" (Docteur Laval – Histoire et Statistiques de la Vigne des Grands Vins de la Côte d’Or, 1855).

1976 : First purchase of some vineyard land in Meursault Premier Cru "Genevrières".

1995 : The Bouchard family passed the torch on to a very old Champagne family, which has carried on the strategy established by the Bouchards over nine generations. The Domaine expanded in the Côte de Nuits by acquiring parcels in the two following Grands Crus : "Bonnes Mares" et "Clos de Vougeot".

1996 : Domaine Bouchard Père & Fils further expanded in the Côte de Nuits by buying some vineyards located in Gevrey-Chambertin: Premier Cru "Cazetiers".

At the same time, the House of Bouchard Père & Fils took over and began selling the wines of one of the oldest and most renowned domaines in Meursault, Domaine Ropiteau Mignon, holding some 30 hectares.

Among other appellations, this domaine covered the following Premiers Crus :
- In Meursault: "Perrières", "Genevrières", "Charmes", "Gouttes d’Or", "Poruzots" and "Bouchères"
- In Volnay: "Clos des Chênes"
- In Monthélie: "Champs Fulliot" and "Duresses"
- In Pommard : "Chanlins"
Not to mention the two following Côte de Nuits Grands Crus: Echezeaux and Clos Vougeot.