Built as the headquarters of the Societat de Socors Mutus Unió Obrera de Calvià benefit society in 1933, it also acted as a leisure centre with a theatre and café. In 1936, during the Spanish Civil War, the building was commandeered and its use changed. Its two-storey main façade, which follows the curve of the street, is particularly noteworthy. On the ground floor, there is a veranda with nine columns.
