 He worked for financiers like Laurent Grimod de La Reynière, for whom he built the famous Hôtel Grimod de La Reynière in Paris, Jean-Joseph de Laborde or for Laborde's father-in-law, Mathias de Nettine, banker at the Austrian court.Through Nettine's influence, he was commissioned to build Brussels's "place royale", church of Saint-Jacques-de-Coudenberg, and French embassy.In 1770 he was named inspector of the buildings for the king's gunpowder and saltpeter, during which appointment he built his best-known work, the château du Marais (1772–1779), for Jean Le Maître de La Martinière, treasurer-general of the artillery.