 On 21 January 1927, the work on improving the accessways between Monção and Melgaço were put up for tender, along with the extension of the railway between the two municipalities.In 1929, a "Comissão de Iniciativa" ("Initiative Commission") introduced improvements at the thermal station.Sections of the women's bathrooms were remodelled, in addition to the installation of a laboratory on site to analyze the waters, as well as an extension that acted as pharmacy.