Château de Beauregard, Manor house in Seyssinet-Pariset, France.

Château de Beauregard is a three-story manor house featuring classical architecture with elaborate stucco ornaments and painted walls throughout its interior. The rooms display ceiling work and wall paintings created using perspective techniques typical of 18th-century design.

The manor house was built in the 18th and 19th centuries; its trompe-l'œil paintings date from 1780. Jean-Jacques Rousseau is said to have stayed there in 1768. The grand salon and adjoining bedroom were classified as monuments historiques on 15 December 1997, while the rest of the château, its park, greenhouses and garden follies were inscribed the same day, after a first inscription on 17 November 1996.

The château belongs to the Perrin family, Grenoble glove-makers, and is opened to visitors only a few times a year, by agreement with the family and the town hall. The grand salon, decorated with plasterwork, and the adjoining bedroom are the rooms most often shown.

The property remains in private hands and is only accessible during special heritage events and pre-arranged visits. It is advisable to check in advance about open days as regular public access is not guaranteed.

The park holds greenhouses, a large swimming pool, a garden folly, fountains and basins fed by a spring, a cascade and an avenue of century-old trees. From the grounds visitors see the Grenoble conurbation, the Belledonne range and, in the distance, Mont Blanc. The ensemble was partly listed on 17 November 1996, then again on 15 December 1997.