Hôtel Moreau, Private mansion in 9th arrondissement, Paris, France

The Hôtel Moreau is a private mansion in the 9th arrondissement of Paris featuring a grand facade with Ionic columns at the entrance and multiple floors on rue de la Chaussée-d'Antin. The building displays classical French architecture with a central courtyard and carefully designed interior spaces.

The mansion was built in 1797 by architect François-Nicolas Trou dit Henry for Joseph Lakanal, embodying the architectural ideals of the French Revolution. Throughout the 19th century, modifications were made to adapt the building to changing needs and uses.

The central circular room displays decorative elements from the Premier Empire period, reflecting the refined taste of early 19th-century French architecture. These spaces give visitors a sense of how wealthy Parisians of that era lived and arranged their homes.

The Hôtel Moreau stands at 20, rue de la Chaussée-d'Antin in the 9th arrondissement, near the Chaussée d'Antin-La Fayette metro station. Since 2013 it has housed the Conseil supérieur de la magistrature, which moved there from the palais de l'Alma, so the interior is not open to visitors. From the street you can see the cream stone facade, the round archway and the Ionic columns of the entrance.

In 1977, some 400 sculpted fragments from the facade of Notre-Dame de Paris were found in the courtyard, including the heads of the Kings of Judah statues. They had been hidden there by Jean-Baptiste Lakanal, brother of Joseph, after revolutionaries destroyed them believing they depicted French kings. The pieces are now in the Musée de Cluny.