A framework for using heterogenous data from digital building permits in urban mining

Previous approaches to material inventories of buildings require complex surveys, complicated es-timations or BIM models. The concept presented explores the use of the digital transformation of building permit in Germany to create a data collection layer for urban mining. By analysing certain aspects of building permits in Germany and using digital methods, relevant data can be extracted. Different forms of future building permits and their characteristics are defined and analysed in order to select specific digital methods such as artificial intelligence. A comparison of the different forms shows that the necessary data can be extracted from simple digitised documents and further devel-opments of the building permit offering more potential in terms of reliability and accuracy.