At the end of the Napoleonic period, the Kingdom of Lombardy-Venetia was set up, involving the return of the Habsburg’s to power. The new government organized the realization of a new census concerning the real estate from 1817. This time the Austrian crown adopted the geometric-particle system for the whole territory of the Empire. This model was already introduced in Duchy of Milan in the eighteenth century. So the Census of Kingdom of Lombardy-Venetia was de facto an extension of the existing cadastre of Milan to the territories of the former Republic of Venice, namely Eastern Lombardy and Venetia. The cadastral registration process was very long and complex and it finished only after the mid-nineteenth century (between 1852 and 1853 depending on the department). The contribution presents the organization and activity of the administrative offices in charge of the census as well as the action of the responsible magistrate (the Census Council) to define the objectives and the methods of establishment of the evaluation system of the land properties. A focus will be dedicated to the instructions which were given to the surveyors who were responsible for the survey; the documents related to the personnel management which are interesting for both the selection process and the professionalism; the trend of the "census campaigns"; the role played by the various administrations that were responsible at the central level (Milan and Venice) and in the periphery (the mandamenti or constituencies) and their inter-relations.