The integration of land and housing law, processes, and data is a significant issue in China. Prior to the design of any integrated information system, the legal requirements of such a system must first be assessed. To date, this has not been fully studied. In this paper, we identify and review the requirements for the integration of land and housing information in China from the legal point of view. Specifically, this paper utilizes the existing land legal system to guide this review process. Seven levels of legislations are studied, and a collection of legal requirements from the Constitution down to land standards is developed. The legislative review covers both land and housing administration domains and specifically includes land related, housing related, and real estate related documents. On the basis of the impacts, these collected legal requirements are then synthesized and categorized under the following headings: registration, maintenance, mortgage, transfer of real estate rights, relevant materials and archives, preliminary notice, etc. The paper concludes by proposing that these legal requirements can be used as one of the foundations for land and housing integration in China. It is the aim of this review that serves as a starting point to develop the integrated data model for land and housing information in China.