Impacts of extreme weather events are increasing due to ongoing climate change. Floods in the urban areas not just damage properties but also threat human life. Coping with these challenges in metropolises of old Europe is difficult as the ex-istent building structures and combined rainwater andn sewage systems originating from the 19th century. We compare three old European capital cities (Berlin, Budapest and Paris) regarding rainwater management concepts. We identify important spatial land use types of blue‑green infrastructure and corresponding measures for the implementation towards a more water sensitive management by using the case study approach.
