By bus : From Gare de Lyon Station, take 61 bus and get off at Basfroi station, (in front of the Hotel).

By metro : you can either take like 9 and get off at VOLTAIRE station, or take line 8 and get off at LEDRU ROLLIN station.

From Roissy :From ROISSY CHARLES DE GAULLE airport, Take RER B to GARE DU NORD, then take the metro line 5 and change at OBERKAMPF for line 9 to VOLTAIRE.