Monsieur was engaged in building operations at Saint-Cloud until his death in 1701. The works were designed and constructed by his architect Antoine Le Pautre, who built the wings in 1677. The château as it was reconstructed for Monsieur took the form of a "U" open to the east, towards the Seine, with the Gondi château, which had faced south, integrated into its left wing. To the rear, a long orangery formed a wing that prolonged the right wing of the court. The entrance avenue, bordered by dependencies, some of which survive, arrived on an angle from the bridge.