Phenomena associated with suburbanisation appeared in Venice earlier than in similar Italian cities due to the peculiar nature and shape of the city, clearly divided as it is into (at least) two parts, namely: the ancient, water-based one – consisting of the city core with a smaller lagoon island – and more recent developments on the mainland.1 The relationship between the old and the new parts of the city – or between the archipelago and the mainland – have always been uneasy (see figure 15.1).