The building has been listed in the supplementary inventory of historic monuments since 1986 and the façades, roofs and swimming pool were listed in 1991. When François Chatillon and his team win the project, it is a question of making a real renaissance: by returning to the original image for lack of the original material when it had disappeared. A thorough phase of all-round diagnosis made it possible to observe the state of the building, to search for its initial appearance and its original functioning. Thus, the ochre-ribbed porcelain stoneware of the beach (Atelier Fauvel) and the white and green "graiblanc" glazed stoneware (Gentil and Bourdet) remained occasionally, while the green tiles of the basin were rediscovered during its demolition. The stratigraphic study of the paintings confirmed a dominant white and green chromatic range. The photographs made it possible to understand the decorated glass roof/ceiling system in order to reconstruct it with contemporary thermal qualities and restore natural light to the space. The pool and beaches were replaced, making it easier to treat the reinforced concrete gantries common to the dwellings and pool. A methodical purge of degraded concrete preceded a reinforcement of the structures, while cathodic protection was installed on the horizontal part of the gates. The technical elements of this equipment have been renewed: water, air, electricity, plumbing and water treatment. The pool has been made accessible to people in wheelchairs by using lateral spaces around the pool (changing rooms and toilets) at street and beach level. The staff premises are now worthy of the 19th century. The baths and showers above the entrance, which were the main hygiene equipment of the time, have not been forgotten, they are now renovated and accessible, and the restoration of a state "as close as possible to the original" is the result of consultations with the DRAC curators and the sponsor. This adventure in the heart of this very special islet has made it possible to revive a lost image with today's performances. This nave has become beautiful and more respectful of Henri Sauvage's project, while the ship has become healthier, more economical and more welcoming.