Flamboyant Gothic style half and half Renaissance, the church of Our Lady of Saint-Calais consists of a central nave and two aisles opening onto a Renaissance facade. It offers three openings with pilasters at the center with a beautiful carved door depicting the four scenes of the life of the Virgin by the sculptor Guillaume Le Houx.
From the top of its bell tower 58 m, Notre Dame has two organs from before the French Revolution, that of the abbey church and the parish church of today no longer forming one beautiful instrument classified since 1971.