Hôtel de Clermont-Tonnerre, Private mansion in 4th arrondissement, Paris, France.

The Hôtel de Clermont-Tonnerre stands at 18 place des Vosges, on the east side of the square between the hôtels d'Asfeldt and d'Angennes de Rambouillet. Its ground floor opens onto the arcade through four round arches on stone piers; above, the facade alternates red brick with pale stone quoins, and six rectangular windows with dark metal railings sit on the two main floors, with smaller windows and dormers under the roof.

The mansion dates from the early 17th century and stands at 18 place des Vosges, on the east side of the square between the hôtels d'Asfeldt and d'Angennes de Rambouillet. It was classified as a monument historique in 1954.

The mansion stands at No. 18 on the east side of the Place des Vosges, between the hôtels d'Asfeldt and d'Angennes de Rambouillet. Its name recalls the Clermont-Tonnerre family; an earlier hôtel of the same name stood at 27 quai de la Tournelle in the 5th arrondissement. The ground-floor arcade of four round arches, with a small round sign in one arch, is part of the square's continuous vaulted gallery.

The mansion is a private condominium at 18 place des Vosges, on the east side of the square between the hôtels d'Asfeldt and d'Angennes de Rambouillet, so only the facade is seen. The nearest metro is Saint-Paul on line 1, with Chemin Vert on line 8 also close. Approach from the arcade to see the four round arches and the brick and stone bands above them.

The ground-level arcade of four round arches on stone piers is part of the brick-and-stone gallery front that gave the Place des Vosges its uniform look; the small round sign in one arch marks the entrance at No. 18. The upper floors alternate red brick with pale stone quoins, and six windows carry dark metal balcony railings.