Château de Vert-Mont, Historical villa in Rueil-Malmaison, France

Château de Vert-Mont is a neo-Louis XVI villa in Rueil-Malmaison, built around 1900 on the base of an 1858 house. Its pale stone facade has a dark grey mansard roof, a recessed left wing with a large glazed archway, and a central bay topped by a triangular pediment. A balustraded terrace runs along the ground floor.

Gustave d'Eichthal formed the estate between 1855 and 1858 from parcels detached from Bois-Préau, and a first single-storey house with a flat roof was built around 1858, badly damaged by fire in 1870. Edward Tuck bought the domain in 1898, gave it the name Vert-Mont, and around 1900 rebuilt the present château in neo-Louis XVI style on the old ground floor. The park was listed as a monument historique on 14 November 1994.

Edward Tuck gave the estate its present name, Vert-Mont, after buying it in 1898. The bathroom is decorated throughout with plant motifs on Venetian faience, and a winter garden known as the "salle de verdure" was added before 1910. The park holds stables, greenhouses, an orangery and a former power plant built in regionalist styles.

The estate is now reduced to 6 hectares, down from the original 12, and houses the Fondation Tuck, so access is not that of a public museum. The park, with its Berthault terrace, was inscribed as a monument historique on 14 November 1994. The château stands beside the Bois-Préau and Malmaison estates in Rueil-Malmaison.

In the early 20th century, the estate operated its own electrical power generation facility on the grounds. This technical building was later repurposed as a guardian pavilion and remains a rare example of private power generation from that era.