A digital twin of a historical building is formed on the basis of the Historic BIM (HBIM) information model and is used to study the processes that occur with the object in real time. Based on a review of sources, this article reveals the concept of a digital twin of a historical building and describes its structure and properties. The work highlights modern technologies and tools for constructing digital twins of historical buildings and provides relevant examples. As a result, a schema of algorithms for working with a digital twin and a structural and functional schema of the process of creating a digital twin of a heritage object were built. Despite the great potential of digital twins for heritage conservation and research, there are barriers to wider adoption of this technology. Firstly, there is a certain complexity in constructing an information model through laser scanning with subsequent processing of the point cloud and the formation of HBIM. Secondly, specialists involved in heritage projects are not always ready to work with modern information technologies. Therefore, the topic of teaching HBIM and DT in architectural universities needs to be given more attention both in practical work and in scientific research. This article makes a contribution to this current topic. Using the example of a historical building of M.V. Reischer wooden architecture in Ekaterinburg, we show directions for studying technology and developing a digital twin for students of an architectural university.