At the end of the twentieth century few people were really interested in the history of the village of Châteauneuf-de-Galaure or its heritage. But when the idea to create an association was proposed there were enough interested individuals. The Patrimoine Castelneuvois association was created in 1996. After a few exhibitions and publications, the association was in check. The municipality did not invest in the acquisition of Merlière, a fortified house from the seventeenth century, which was for sale.
Then there is Charriere which was considered unimportant and in such a state that no one thought it was recoverable. Since its creation, Patrimoine Castelneuvois has been part of the Drôme heritage, enjoying privileged relations with the Conservation du Patrimoine of the department, the Societé de Sauvegarde, and also the Collectif des Associations de Patrimoine (CAP). Many successful exchanges with other groups sharing the same ideals facilitate emulation of activities to take place.