En un regard
Le château en bref
Champlong Castle stands in the hamlet of the same name, in the Geneva municipality of Avusy, on Chemin du Cannelet, overlooking the Laire and its former mills. It is a former fortified house, long linked to the lords of La Grave, which has kept its defensive layout and most of its medieval enclosure. Partly destroyed by the inhabitants of Cartigny in 1564, and then by the Bernese in 1590 (the enclosure survived), it is said to have been rebuilt in 1626, a date recorded on a heraldic cartouche, with Gothic elements reused in the door jambs. In the 17th and 18th centuries the site took on the character of a pleasure estate, with a walled garden and an approach laid out around a planted island of plane trees. The main house, burned around 1860, was rebuilt. The whole is listed in the Swiss Inventory of Cultural Property of Regional Significance (no. KGS 02380), and the hamlet has been subject to a cantonal architectural survey since 1976–77.