Architectural style: Romanesque
The small church of Sant Blai stands behind Was Baronia, a noble 17th-Century building in the village of Les. Its smallness, including its semicircular absidal space, seems to indicate that the current chapel would be part of the head of a building at its largest time, or was else the result of reconstruction work based on original elements.
The west wall -or head wall – which opens out of a semicircular arch, is wider than the actual body of the chapel, thus pointing to the possibility that the building was prolonged with a wide nave which, at some unknown point, was destroyed either by the hand of man or by the hand of nature. Moreover, the presence of four windows for no apparent reason has also given rise to hypotheses as to the possible former existence of a crypt.
Thus, this building, which would seem to be from the 12th Century, has a very curious appearance which to this day poses question marks as to its original architectural and functional structure.