The growing attention to improve the building’s thermal performance has initiated an increasing demand of innovative remodelling solutions for existing houses. Advancements in contemporary CAD and CNC manufacturing technologies allow the use of modular prefabricated insulated wood frame panels for this purpose as one of the possible solutions. More and more widely used Building Information Modelling (BIM) concept with its’ parametric modelling capabilities allows to assess the outcomes of the results of preliminary building energy performance analysis and later coordinate these complex and complicate processes much easier and cheaper. As one of the key components in the solution of this problem is fast and precise acquisition of geometry of the building. The captured 3D building model serves two purposes. One is a comparison of energy analysis before and after reconstruction by means of digital simulation methods when the selected type and/or variant of insulation solution are applied. The use of BIM concept in building industry allows fast and easy assessments of several possible solutions considered within the same parametric BIM model and finally choose the most advantageous. The second purpose is an elaboration of a subsequent detailed structural design of the selected optimal solution, which could be streamlined directly from CAD software to CNC fabrication. This research was aimed towards reconstruction of BIM compatible 3D geometric model from laser scanned data that captures the building’s external envelope with main openings. To capture the existing buildings’ envelope a 3D laser scanner was used in this study. Laser scanning is getting increasingly wider application in many engineering solutions, like visual preservation of values of cultural heritage, capturing complicate plant systems as-build, etc. The present research focuses to the capture of building 3D geometric data in a BIM compatible format, which later may be used for energy analysis purposes during the renovation project and structural design of insulation systems. A raw laser scan data captured at the building site was later post-processed with dedicated software to comply with import options for BIM software. A tracing of 3D geometry of building was performed with a point cloud data as a reference. Manual, semi-automatic or automatic processes may be used to trace the external envelope of the building with required openings. Major developers of BIM software, applicable for these tasks are Autodesk, Graphisoft, Bentley, Nemetscheck, etc. Although all they are familiar in a local industry, the dominating are the first two. Therefore, in a preliminary study, the Autodesk Revit and the Graphisoft ArchiCAD software were tested and BIM compatible 3D models were created from the scanned data of approx. 300 m2 2-story building that was selected in a pilot study. A general workflow in both cases is very similar with minor variations depending on a particular software performance. The present paper describes the approach used in the study, and the assessment of the results obtained, including practical recommendations.