Deutsche Asset One has bought 750 apartments valued at around €90m. : Deutsche Asset One has bought apartments valued at around €90m for two separate account mandates from Union Investment. In 2016, Union Investment awarded Deutsche Asset One a mandate to invest in German residential property. Deutsche Asset One, a Dupuis Investment & Asset Management company, said it has bought 750 apartments in Hamburg, Leipzig, Magdeburg and Saarbrücken. Sellers in the latest deal include a number of German family offices. In the past 24 months, Union Investment has bought residential properties valued at around €500m for both mandates.