This article deals with the problem of accumulation and systematization of information in studies devoted to 3D reconstructions of objects of historical and cultural heritage. In the presence of a large number of heterogeneous sources, the researcher may get confused in the accumulated data, which significantly complicates his work. Since in research, the results of which are virtual reconstructions, text sources are used together with graphic, scientific and technical documentation, as well as physical objects undergoing preliminary digitization, the accounting and cataloging of sources cannot be neglected. The solution to this problem allows the most complete and efficient use of all the materials available in the study, which ultimately affects the quality of the reconstruction result obtained. In this article, using the example of a project for the reconstruction of estate complexes in the Moscow region, the author demonstrates the developed system of accumulation and enrichment of source information using modern database management systems and software tools for working with data. The information aggregated and described in the MySQL database is supplemented with information from open sources using web scraping technology in the Python programming language, acquires end-to-end identification and acquires usability in various studies. Standardized information allows you to quickly find the right source from the very top level, and its enrichment provides additional opportunities for analysis and synthesis of all aggregated material.