Within the bounds of the GRAD- Strategy of Green Roofs project, representatives of 8 pilot cities undertook a study tour to Hamburg on June 5 and 6, 2019. During this trip, they learned more about the development of the city’s green roof strategy, observed how it is changing the urban landscape, and visited fascinating objects with green roofs and vivid walls. These are becoming more numerous every year – the city of Hamburg’s goal is to cover urban areas of up to 100 hectares with vegetation. New green roofs are being built on both public and private buildings – residential and commercial – and a significant number of them are open to the public.