Zusammenfassung
Summary
The analysis of the German building stock and its development is of particular importance for sustainable settlement and open space development. Since 2016, official 3D building models have been available nationwide in their simplest form, the block model LoD1 (Level of Detail 1). However, there are considerable differences in data collection in the federal system of official surveying in Germany. By evaluating metadata on data quality information, the paper informs about the differences in the collection of height information, data timeliness and further meta information of the data product 3D building models LoD1 with respect to federal state specific peculiarities, prepares them visually and discusses existing differences.