Reading this article, there are quite a few examples of "buildings with trees" in Germany, e.g. * the "Baumhaus" (tree-house) in Darmstadt [1], built 1970 (!).

Reading this article, there are quite a few examples of "buildings with trees" in Germany, e.g. * the "Baumhaus" (tree-house) in Darmstadt [1], built 1970 (!). The linked article talks about some of the difficulties you get when roots grow through the roof, and how to avoid that. * the "1000 green roofs" programme in Berlin [2], one particular example [3] * there's a couple of Hundertwasserhaus with a unique architecture, and those usually also have green roofs. On top of that, you can find points (3) walkable streets, (4) varied architecture and (5) shade in many many towns and cities in Europe. In Germany, this has a long tradition; the "Dorflinde" ("village linden tree") is the historic center of many villages. [1] https://biotope-city.net/en/pioneer-ot-hoffmann/ https://biotope-city.net/en/pioneer-ot-hoffmann/ [2] https://www.berlin.de/sen/uvk/natur-und-gruen/stadtgruen/stadtgruen-projekte/1-000-gruene-daecher/ https://www.berlin.de/sen/uvk/natur-und-gruen/stadtgruen/sta... [3] https://www.landscaper-berlin.de/dach-holzbau/flachdach/dachbegruenung https://www.landscaper-berlin.de/dach-holzbau/flachdach/dach...