Verkaufsbücher

During the Second World War, buildings were sold by the Germans, the owners of which are mostly Jewish. The administration of this is in the so-called Verkaufsbücher that the National Archives keep. The records in the Verkaufsbücher contain the addresses and names of the original owners, the brokers involved and the war buyers. With the selling prices. In July 2019, a team of the National Archives and the Land Registry linked the transactions from the Verkaufsbücher as linked data to the data from the Kadaster’s basic registration addresses and buildings (BAG). As a result, these unlawful trades are literally mapped out. The results can be seen in the online lab environment PDOK (Public Services on the Map) of the Land Registry. The National Archives uses this platform to link the linked data to (the aggregated) BAG data that lies with the Land Registry.