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Heritage classified

Key figures

Origin and history

Chonas Castle, located in Chonas-l'Amballan (Isère), is a historic monument built between the last quarter of the 16th century and the first quarter of the 17th century. It is distinguished by its location on a south slope furnished with terraces, with the main body and park raised compared to the communes and farm, located to the west. The whole is lined with a wall connecting the buildings of the outbuildings, creating a closed and structured space. The castle has a L-shaped composition, delineating a courtyard on its west and south sides. Its architecture blends various styles, visible through the bays: some date from the late 15th or early 16th century, others from the late 16th and 17th century, reflecting successive construction campaigns.

Major transformations took place in the 19th century, as evidenced by the date of 1834 engraved on the portal. These modifications probably adapted the castle to the uses and tastes of the era, without fundamentally altering its original structure. The estate, including the castle, its outbuildings (courts, commons, cooler), terraces, the fence wall and the park, was included in the inventory of Historic Monuments by order of 12 July 2000. This protection recognizes the heritage value of a coherent architectural and landscape ensemble, illustrating the evolution of a seigneurial residence between Renaissance and modern times.

The spatial organization of Chonas Castle reveals a social and functional hierarchy typical of the large houses of this period. The positioning of buildings — with high-rise spaces and agricultural activities below — highlights the distinction between places of representation and places dedicated to work. The terraces and the park, remarkable landscape elements, contribute to the staging of the power and prestige of the owners, while integrating the castle into its natural environment. The absence of sources detailing the historical sponsors or occupants limits the knowledge of the precise social dynamics that led to its construction and transformation.

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