Cities are where 72% of all Europeans live, and this percentage is expected to rise to 80% by 2050. Given this trend towards urbanization, cities are continuously growing, which also entails a growing risk of social segregation, lack of security and mounting environmental problems. All toooften, today's cities have to cope with social and environmental crises, shifting the European urban agenda towards regeneration processes. Urban regeneration is more complex than merely renovating existing buildings, as it also involves social and environmental problems, inhabitants' quality of life, protecting tangible and intangible cultural resources, innovation and business.