In this paper, the authors contain an analysis of the application of 3D scanning in the process of creating a very precise numerical model of historical buildings. 3D scanning is used in inventory documentation with the visualization of a building and the creation of 3D models in most cases. As a result of 3D scanning a point cloud consisting of million points creating the spatial image of the scanned building is received. It is possible to convert this point cloud to the form of the geometrical mesh of triangles or the set of parametric surfaces using the appropriate software.