The museum is housed within the Petit-Montmorency, constructed in 1743 by the Comte de Montmorency, and former home of academic painter Ernest Hébert (1817–1908). After his adopted son's death in 1974, the building became state property and opened as a museum in 1984. Since 2004, the museum Hébert has been affiliated with the Musée d’Orsay, and indefinitely closed for renovations.
The museum contains collections of Hébert's work, furniture, decorative items, souvenirs, and photographs, set within rooms almost unchanged since the 18th century. His paintings include portraits of literary critic Jules Lemaître, and two noted grandes horizontales, La Païva and Madame de Loynes.