The Park of Salgadas Stones was affected by the natural decline that impacted most thermal parks after World War II, due to medical advancements and the growing preference for beaches among tourists. The buildings were abandoned and in a state of decay.

The chapel underwent various renovations over time but has been restored, with clean altars and vaulted ceilings. Now, it serves as a socialization venue that, with prior permission from clerical authorities, allows for the conduct of religious ceremonies. The chapel’s recovery intervention was carried out by the team from the Rebelo Andrade Architecture Office, also responsible for the restoration of the iconic Casino building, constructed in 1910, an emblematic structure of thermal architecture from that era. Some changes were made to the interiors, including accessibility for people with reduced mobility, circulation, public restrooms, and support for events and performances, without the need for major reconstructions. The ambiance of the entrance halls was preserved, and the decoration in the main hall was maintained, with the addition of two boxes.