Are green roofs, living walls, roof gardens, skylines and skyscapes landscape architecture? Q&A

Question: What policies should citie have for green roofs, living walls, roof gardens, skylines and skyscape landscape architecture?
Short answer: Yes.  Green roofs, living walls, roof gardens, skylines and skyscapes are key aspects of urban landscape architecture.
Longer answer:
London, like many other big cities, is planning more greening of buildings. The Mayor’s 2021 New London Plan introduces an Urban Greening Factor for the assessment of development projects. You can compare it with Singapore’s LUSH policy but it only calls for one third as much planting. This is a mistake, and so is the failure to assess greening proposals for social and visual criteria, as well as for ecological criteria.  In my opinion, London needs an ambitious design objective. A City in a Landscape would be fine. And it also needs a landscape infrastructure plan supported by green building regulations and financial incentives – all with aim of creating what Geoffrey Jellicoe called a Collective Landscape.