The article discusses methods for creating digital twins of objects with their entire design in building information modeling. Methods for determining spatial characteristics of properties and facilities and obtaining a cloud of points are presented. The possibility of combining point clouds obtained by using different methods to improve the detail of the result is considered. An essential part of the process of applying the results is in building information modeling and analyzing the point clouds and creating a vector object of the model. With this data, the target is considered with software for processing the raw data as well as file formats for storing the results. The article presents methods for extracting information from the point cloud and creating a property and facility database. Objects in the database are dimensions, materials, surfaces, structures, and other components of BIM modeling elements. The object of the study is the dam wall, the spillway and part of the surroundings of Pancharevsko Lake, surveyed under CEEPUS summer school "Introduction to 3D BIM: creating a digital twin of a dam and facilities".