In 2016, an initial diagnostic study paved the way for the restoration of the building and its decorations, while also making it possible to read the old distributions again.
The restoration of the walls and roof made it possible to secure the structure, restore the waterproofing of the roofs, and restore all of the exterior woodwork, in accordance with the original specifications.
The restoration of the painted decorations then revealed a previously unseen decorative ensemble, concealed beneath modern repainting, particularly on the ground floor: in the vestibule, a painted decoration resembling tent canvas was restored; in the dining room and small lounge, stratigraphic surveys made it possible to trace the complex chronology of successive interventions and restore the rich colors of the compositions. On the first floor, in Fortunée Hamelin's bedroom, the period stretched canvas frieze was carefully cleaned, consolidated, and restored using natural resin-based paint. In areas of high heritage value, modern technical equipment is virtually invisible: it has been integrated into the furniture or concealed in the floors and ancillary spaces such as cellars, attics, and outbuildings, providing optimal comfort while preserving the architectural and historical qualities of the building.
In 2020, these operations led to the complete restoration of the hotel's original decorative style, revealing the richness and consistency of its original décor.