 The municipal territory of Casalnuovo was enlarged by Royal Decree of 25 February 1929, n. 316[2], with the consolidation of the then municipality of Licignano di Napoli, and the addition of parts of the territory belonging to the municipalities of Afragola and Pomigliano d'Arco.During the administrative redesign wanted by fascism, Licignano, after having been part of different municipalities, became a small fraction of Casalnuovo di Napoli.In the 1950s, due to the divestiture of some territories of San Sebastiano al Vesuvio, the hamlets of Tavernanova and Casarea were added to the municipality of Casalnuovo, while the area called Botteghelle, between Casalnuovo and Tavernanova, continued to be part of the municipality of Afragola until the 1970s.