BusinessThe property tycoon Christoph Gröner To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusinessChristian Pricelius05/26/2020May 26, 2020Christoph Gröner has made a lot of money turning office buildings into luxury apartments. He says he never buys property where tenants are already living. His projects contribute to gentrification but not directly at the expense of others.https://p.dw.com/p/3QAYZAdvertisement