It becomes more and more common of changing the usage of buildings. But quite often incorrect or no plans are just existing. A fast way of capturing the real conditions is a laser scanner. The scanner is touching the surface of its environment with the help of a laser beam in a predefined raster. At the end a lot of points were generated that are in total a three dimensional representation of the area that got scanned, what is also called pointcloud. That pointcoud can be used for generating floorplans, sections, views or even 3D-models for further investigations.