- Castle of the Dukes of Brittany

The 1990s focussed on restoring the Jacobins' Tower (Tour des Jacobins), the façades of the Principal Governor's Palace (Grand Gouvernement - 15c/17c) and the 15th century Golden Crown Tower (Tour de la Couronne d'Or). The Military Saddlery (Harnachement - 18c) refurbished in 1997, was used for temporary exhibitions.

In 2000 work began on restoring the white tufa façades of the main ducal residence (Grand Logis - 15c) to their full glory. These are the oldest and most impressive sections of the building, providing a link between the Castle of the Dukes of Brittany and the Loire Châteaux. The bell tower has been rebuilt and the spires have been replaced on the Golden Crown Tower (Tour de la Couronne d'Or). The interior of the ducal residence has also been completely restored and redeveloped to house the museum.

The restoration has brought out the full power of the Breton feudal fortress and the elegance of the Renaissance ducal palace.

The whole of the ducal residence is now accessible to the public.

With the reception areas and temporary exhibition spaces in the Military Saddlery (Harnachement), more than 5000 m² of public access has been created.

A commitment to accessibility has also guided the restoration: The Castle of the Dukes of Brittany is a rare example in France of accessibility for persons with reduced mobility in a 15th century building converted into a museum.