The subsidiary church dedicated to the French pilgrim saint and miracle-worker, Rocco di Montpellier (popularly known as Saint Roch), is decidedly neoclassical in style with artwork by Carlo Bonacina on the facade.
Standing opposite the rectory of Cles, it abuts against and is integrated with a private building along much of the right wall of the nave. It was constructed in 1878 under the initiative of the Deacon of Cles, Francesco Candotti (1849-1878), and shares its dedication with another church that used to stand near the old town hospital. The latter was officiated by the Confraternity of San Rocco starting from 1756 but subsequently destroyed in a disastrous fire in 1824.