The Casa de l'Ardiaca (Archdeacon House) was rebuilt in the 15th-16th century by order of the Archdeacon Lluís Desplà, who converted his residence into a Gothic and Renaissance palace. In the 19th century, several owners made changes. In 1924 it became the site of the Arxiu Històric de la Ciutat de Barcelona (Historical Archives of the City). The current look of the square side dates from 1962, when the houses attached to the Roman wall were torn down. In the early 2000' the building was entirely restored.