The Waldspirale is a residential building complex in Darmstadt, Germany, built in the 1990s. The name translates into English as forest spiral, reflecting both the general plan of the building and the fact that it has a green roof.
Called Palazzo Verde, the design is formed with a semi-public garden at the ground floor and three large terraces of roof gardens. The project will include 86 trees, 2200 shrubs and perennials and 428,88 square meters of green surface.

LEED-ING LANDSCAPE DESIGN: GREENROOF DESIGN AND BENEFITS More and more []Energy and Atmosphere. Although greenroofs have been in use for centuries, the green movement has provided stunning data responsible for their come back in the 20th and 21st centuries.

eight-story wooden apartment building in Finland.