To come to hotel belfort ,follow one of the below directions.
From Gare du Nord,Gare de L'est,Gare d'Austerlitz take metro lien 5 until Republique and change to metro line 3 and get off metro station Saint Maur and we are on the adress , 37,rue servan 75011 paris ..
From Charles de Gaulle and Orly airports take the train called RER-B until Gare du Nord and then follow the above directions.