The organizational, legal and technological problems of cadastral works on the preparation of documents provided for entering information about land plots and other real estate objects into the Unified State Register of Real Estate are revealed in this paper. The authors carried out a general analysis of the information exchange with the Rosreestr authorities during the interaction of participants of cadastral relations and proposed the ways to improve the activities of cadastral engineers in case of their interaction with the state registrar, that can increase the efficiency of cadastral works.