The paper discusses the widespread belief that the Augustan age had represented, in the urban centers of the Regio X, a time of great building development both in public and in private architecture. Our analysis of available documentation relative to some of the centers in Northeastern Italy, such as Aquileia, Iulium Carnicum, and Tergeste, appears to indicate, however, a certain scarcity of data related to direct interventions by Augustus. Rather, the data places the primary push of urban renewal in the first decades of the first century AD, correspondence with the newly found peace after the Illyrian wars?
