Hôtel d'Orsay, Orsay 74 € per night for one person, breakfast 9 €. Located close to RER B station ’Le Guichet’, at 10 min walk from the workshop location.
If you prefer being in Paris centre, lots of hotels are available. Nevertheless we advise to choose a hotel close to the RER B train line (approx. 40 minutes train from Paris centre (Châtelet-Les Halles station) to Orsay station using RER B train + 10 min walk to the Orsay campus.