3D building model LoD1-DE Hamburg

3D building model LoD1-EN For the LoD1-DE dataset up to and including 2022, point clouds (Airborne laser scanning or photogrammetry) are formed fully automated flat roofs with an average building height and assigned to the buildings. Since 1.4.2023, the building model LoD1-DE is derived from the LoD2-DE building model. The LoD1 roof height is formed as an average of the standard roof shape LoD2. The building floor plan is basically taken from the official digital property map and the model is therefore floor plan compliant. The location accuracy corresponds to that of the underlying building floor plan. The height accuracy is approx. ± 5 m. Coarse deviations are possible in individual cases with complex roof shapes. Shared geometry is managed redundantly. The buildings are additionally blended with terrain information of the Digital Terrain Model (DGM) held at the state operation. There is no manual post-processing of the individual models. The modelling corresponds to the AdV product and quality standard for 3D building models. The timeliness of the data base is usually older from the previous year, in the case of ALS point clouds. (Example: The download LoD2-DE 2023 is based on floor plans and point clouds from 2022) The building model LoD1-DE is reserved for the entire urban area of Hamburg (about 750 km²), including the island of Neuwerk. The data can be downloaded as a complete record in CityGML V.1.0 format. Further data formats and excerpts can be obtained at [e-mail].