It is a small, rectangular, single-storey hermitage, made of lime and mortar and with a gabled roof without a gable.
The primary purpose of the chapel of Sant Roc was to provide a secluded place for the characters of the Reformed Carmelite Order who wanted, for a few days, to lead the life of an anchorite, but in a more comfortable place than the one that characterized the first hermitages built during the first half of the 17th century in the Vall de Cardó, following the founding path of Teresa de Jesús. Although the date of consecration is unknown, it is known that it was the last to be built. It was abandoned, like the rest, in 1835 due to the confiscation of Mendizábal.
Its waters, known since ancient times as Ronya due to its healing properties, allowed the hermitage to be transformed, from the beginning of the use of the valley as a spa, into the pavilion for inhalations, sprays and partial bathrooms. But as it was very far from the main buildings, at the beginning of the 19th century the waters of the Ronya or Sant Roc were led to other sources that were closer After the Civil War, the hermitage of Sant Elies or del Borboll concentrated the services hydro-therapeutics, and that of Sant Roc was abandoned.