BusinessRising rents: A tycoon with a heartTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusinessMarta Grudzinska07/23/2019July 23, 2019Hamid Djadda got rich buying and selling property. Prices and rents are soaring in Berlin. Now he is buying up commercial space in the city and renting it at moderate rates so that the tenants aren't driven out of business.https://p.dw.com/p/3McMnAdvertisement