For a better assessment of Duisburg as a location and of the chances for returns on investment there, we recommend the market reports of supra-regionally active agents for real estate used for commercial purposes. The comparison of Duisburg with other cities in Germany makes it possible to assess Duisburg's strong points and potential better.

Very interesting for foreign investors is the differentiated Office Market Report on the Ruhr Area, published by Cubion Immobilien, in April 2008. There is a download on this side below.