Documentation is the process of gathering and organising the information necessary to define knowledge of a cultural property, to integrate the results of projects and restoration yards, so as to create a consistent database useful for the management of a cultural property in all its possible facets. Nowadays all disciplines involved in ‘knowledge’ building must face the implications that the employment of digital data entails for the possible disciplinary research paths, in order to share and distribute the results of readings and interpretations homogeneously, and with easy accessibility for all specialists who base their analysis on them. All international Charters on restoration stress how historical and metric knowledge constitute the essential bases for any documentation of a cultural property capable of supporting any other specific analysis required to face the complexity of a restoration project, and later the planning of policies for post-intervention enhancement and management. In such context the technology of GIS (Geographic Information Systems) and of BIM (Building Information Modelling) represent a viable answer to supply a consistent and sharable platform for all analysis data (historical, metric, of material and structural deterioration, etc.) which, because of their common geographic reference matrix, allow to provide final results generated by the crosscheck information-power of every single data item. Starting from the results of some experiences carried out by historians and surveyors in the city of Turin on projects by Alessandro Antonelli, the contribution highlights the potentialities of the integrated approach as the possible structure of a shared database for successive restoration interventions and enhancement of an urban context.