Château de Bandeville, Louis XIII style castle in Saint-Cyr-sous-Dourdan, France.

Château de Bandeville is a Louis XIII style castle with a central building flanked by side pavilions built from rubble stones and red bricks. The structures surround a park and display classical French residential architecture.

The castle was built in 1622 for Thierry Sevin and later received the status of a marquisate. Under François Bazin in 1682, the structure was modified and expanded.

The château's name comes from the Bandeville fief, held by Simon de Bandeville in 1236. The estate passed by marriage from the Rappouël family to the du Dracs in 1536, then to the Pourtalès in 1806, who still own it. The entrance lodge mixes neo-Gothic and Egyptian eclectic styles, a contrast with the Louis XIII main building.

The main facades, roofs, vestibule, and staircase are protected by historical monument status. These preserved details show the craftsmanship standards of the early 1600s.

The entrance lodge, probably designed by Louis-Sulpice Varé around 1833, mixes neo-Gothic forms with Egyptian eclectic motifs. Varé also redesigned the park as an English garden, replacing a French formal garden whose basin survives as a pond and whose statues were reused elsewhere on the grounds.