The hôtel du Châtelet (French pronunciation: [otɛl dy ʃatlɛ]) is a hôtel particulier, a kind of large townhouse of France, at 127, rue de Grenelle, in the 7th arrondissement, Paris.
The building is now the home of the Ministry of Labour and the minister’s official residence.
After the duke was guillotined in 1793, the house was inscribed on the list of civil buildings, and it served from 1796 to 1807 as the headquarters of the École nationale des ponts et chaussées.
In 1849, Napoleon III's government paid for renovations and gave the building to the Archbishop of Paris whose palace had burned down in 1831.
From 1849 to 1905, the building's main body served as the archiepiscopal residence.