In the 1990s, the architects Fässler & Partner carried out various conversion work during ongoing operations, such as the renovation of the facade and roof in 1997, the conversion of 90 guest bathrooms and the redesign of the Orsini restaurant in 1998, the redesign of the banqueting and guild hall in 1999 and the redesign of 30 guest rooms and replacement of the canopy at the main entrance in 2000.