The configuration of the urban sites has been setting of social, economic and ideological processes through the time, pertaining to the population entities willing to settle in the occupied site. The administrative planning of urban sectors involved in public or private uses was materialized in the necessary enablement of private or residential areas and public craft or industrial commercial and burial areas. The site of Carthago Nova was not exempt from this in its preRoman and Roman occupations. Its political and temporal progression showed a series of transformations of the urban fabric that were not unconnected to the topographic constraints of the primal physical environment and holocenic ecological contingencies. Bringing out the conjunction of this singular palaeotopography, which has a geomorphological dynamic and a geotectonic origin, with the evidence of significant transformations in Augustan period, is the focus of this work, in which data are shown from an ongoing research.