There, he became close friends with a colleague, Antoine Joseph de Bourge [fr], and married his sister, Sophie.
Upon his return, he was named an architect of the King's Buildings at Fontainebleau and Saint-Germain-en-Laye, where he created two convent chapels.
His students included Charles Percier, Pierre-François-Léonard Fontaine, Antoine Vaudoyer and Louis-Pierre Baltard.
[2] His work for the Royal Family led him to be persecuted in the early stages of the French Revolution.
His well-known projects included creating a new wing for the Château d'Écouen, to replace one that had been demolished to provide a better view (1802-1807), and interior remodeling at the Palais de la Légion d'honneur (1804-1812).