This is the façade of the Chapelle Saint-Charles, which was part of the Hôpital Saint-Charles. The buildings of the hospital have recently been turned into a "résidence." The chapel has been deconsecrated and is now called "La Maison des Choeurs de Montpellier." Quoirs meet and rehearse there.
You will find a lot of photos and information about the chapel and an exhibition that took place in it a few years ago on M. Francis Lopez's site, Les Rues de Montpellier (menu on the left-hand side).
