The construction work began in May 2021 with the restoration of the facades (the masonry, ashlar stones), roofs, and joinery.

Upon completion of these works, in 2024, the Foundation will embark on the restoration of the interior decorations and the installation of the furniture of the castle in view of its reopening to the public.

Simultaneously, the Foundation will undertake the development of the underground terrace to accommodate the public and create a space dedicated to temporary exhibitions. Prior to the restoration, the Foundation conducted extensive iconographic and historical research to best restore the decorations on the ground floor and the first floor.

A new home for masterworks of 18th century French art 

The foundation aims to redecorate Bagatelle while exhibiting unique masterworks of French decorative arts and original 18th century paintings. Furniture and gilt bronzes will be loaned by the French «Mobilier National», and several other exceptional pieces by private art collectors. Donations will allow us to acquire additional artworks on the market. The renovation and decoration of the chateau will be monitored by the foundation’s scientific committee. 

Exhibitions and cultural events 

The chateau will be open to the public for regular visits. A dedicated space will be dedicated to temporary exhibitions, in partnership with other institutions. A program of concerts and cultural events will encourage the public to regularly visit the chateau, making it a must-see destination for Parisians as well as other French and international visitors. 

Social Mission 

The Foundation is very much focused on its key social mission, which is to open its doors to less privileged visitors and enable them to see, understand and appreciate legacy buildings and art history, thereby helping them develop both their curiosity and their creativity. 

Educative Mission 

The Mansart Foundation will organize educational construction sites and heritage projects supervised by professionals. It will offer a range of tours, workshops, and tools tailored to school groups. The Foundation will also provide construction site tours for students from the Chaillot School, art history students, as well as students from art schools.


In partnership with

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In order to discover our entire project, please read this presentation