To monitor the entire process of the construction we utilize the data measured by our laser scanner. As we capture high-definition point clouds and pictures from time to time at specified interval, the changes in progress becomes traceable. In case of missing floor plans and facade drawings of buildings, we can generate them from the pointcloud surveyed to help the renovation, or the realization of asbuilt plan. It is also possible to inspect geometric features of existing buildings, including distance, angle and area measurements on the building site. Fast volume and surface calculations can be achieved.