How Green Walls Work Illustration by Jason Treat, National Geographic. Many living wall systems also have built-in irrigation systems in which water is harvested at the bottom of the wall and recirculated back to the top.The types of plants on green walls differ, but can include grasses, vines, and other climbing plants—all of which must have strong root structures, Green Roofs for Healthy Cities'.
Party Wall student housing. Cool idea for multifamily dwelling. I think older people don't want to live in places like this, even if the units were large enough to fit their expanded life style. Older people are set in their ways and don't want to encounter neighbors on their way to work, partially because they are stuck on a schedule, but partially because interacting would force them to challenge their beliefs and engage with others.