20th century châteaux in Île-de-France
Ancien château de Brévannes, groupe hospitalier Emile Roux
Limeil-Brévannes · Val-de-Marne — France — XVIII–XX
Ancien château de Brévannes, groupe hospitalier Emile Roux is a château at Limeil-Brévannes, Val-de-Marne, in the Île-de-France region of France. The recorded building campaigns date from the 18th, 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Ambleville
Ambleville · Val-d’Oise — France — XVI–XX
Château d'Ambleville is a château at Ambleville, Val-d'Oise, in the Île-de-France region of France. The recorded building campaigns date from the 16th, 17th, 18th and 20th centuries. Its architecture is recorded as Renaissance architecture. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Dampont
Us · Val-d’Oise — France — XIX–XX
Château de Dampont is a château at Us, Val-d'Oise, in the Île-de-France region of France. The recorded building campaigns date from the 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Groussay
Montfort-l’Amaury · Yvelines — France — XIX–XX
Château de Groussay is a château at Montfort-l'Amaury, Yvelines, in the Île-de-France region of France. The recorded building campaigns date from the 19th and 20th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Mézy dit le Gibet dit aussi Villa Poiret
Mézy-sur-Seine · Yvelines — France — XX
Château de Mézy dit le Gibet dit aussi Villa Poiret is a château at Mézy-sur-Seine, Yvelines, in the Île-de-France region of France. The recorded building campaign dates from the 20th century. Its architecture is recorded as modern architecture. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Pinceloup
Sonchamp · Yvelines — France — XX
Château de Pinceloup is a château at Sonchamp, Yvelines, in the Île-de-France region of France. The recorded building campaign dates from the 20th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château de Vaugien
Saint-Rémy-lès-Chevreuse · Yvelines — France — XIX–XX
Château de Vaugien is a château at Saint-Rémy-lès-Chevreuse, Yvelines, in the Île-de-France region of France. The recorded building campaigns date from the 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château de Voisins
Saint-Hilarion · Yvelines — France — XX
Château de Voisins is a château at Saint-Hilarion, Yvelines, in the Île-de-France region of France. The recorded building campaign dates from the 20th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Domaine de Balincourt (également sur commune de Menouville)
Arronville · Val-d’Oise — France — XVIII–XX
Domaine de Balincourt (également sur commune de Menouville) is a château at Arronville, Val-d'Oise, in the Île-de-France region of France. The recorded building campaigns date from the 18th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Domaine de la Malmaison
Rueil-Malmaison · Hauts-de-Seine — France — XVII–XX
Domaine de la Malmaison is a château at Rueil-Malmaison, Hauts-de-Seine, in the Île-de-France region of France. The recorded building campaigns date from the 17th, 18th, 19th and 20th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Domaine du château de Ferrières-en-Brie
Ferrières · Seine-et-Marne — France — XIX–XX
Domaine du château de Ferrières-en-Brie is a château at Ferrières, Seine-et-Marne, in the Île-de-France region of France. The recorded building campaigns date from the 19th and 20th centuries. Its architecture is recorded as Renaissance Revival architecture. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Hôtel de ville, ancien hôtel seigneurial
Epinay-sur-Seine · Seine-Saint-Denis — France — XVIII–XX
Hôtel de ville, ancien hôtel seigneurial is a château at Epinay-sur-Seine, Seine-Saint-Denis, in the Île-de-France region of France. The recorded building campaigns date from the 18th, 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Institution Notre-Dame « Les Oiseaux »
Verneuil-sur-Seine · Yvelines — France — XVIII–XX
"Institution Notre-Dame " Les Oiseaux "" is a château at Verneuil-sur-Seine, Yvelines, in the Île-de-France region of France. The recorded building campaigns date from the 18th, 19th and 20th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Manoir de Beaumarchais
Les Chapelles-Bourbon · Seine-et-Marne — France — XX
Manoir de Beaumarchais is a manor house at Les Chapelles-Bourbon, Seine-et-Marne, in the Île-de-France region of France. The recorded building campaign dates from the 20th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.