I own a house inherited from my parents. Upon my death, I wish to bequeath it to one of my daughters, then have it passed on to my grandson upon her death, with the condition that he transfers it to his future child. Is this possible ?

Partially. By will, you can bequeath this house to your daughter with the condition that she keeps and transfers it to her son (Article 1051 of the Civil Code). However, the law does not allow you to impose this condition on your grandson (Article 1053 paragraph 1 of the Civil Code).