This paper deals with modular buildings, their history and essential features, in particular the experiences and perspectives for the future of cities. Compared to other industries, the use of modular buildings and prefabrication in the real estate industry is low and still expandable. Modular buildings can be constructed within a very short time and still can achieve the highest quality standards. But it is important to pay attention to the design of product lines in order to fit precisely to their future use. Furthermore, the objective is to solve the conflict between climate protection anMd resource conservation on the one hand and a high demand on the other side to find appropriate solutions for the buildings of the future. Such concepts have to use at the same time most modern techniques within the building and in the production process.

The first part of the paper will provide the history and main characteristics of modular buildings. In the second part relevant markets and trends will be analyzed. The third part is focused on strategies to integrate modular building concepts, CO2 neutral energy concepts, social responsibility aspects of real estate developments, and cooperation models with municipalities. In addition to this, some case studies from different countries will be shown. The paper concludes with a discussion of the implications on African markets.