Oregon Sustainability Center
The Oregon Sustainability Center is a proposed high-rise in downtown Portland that would meet the criteria for a "living building" -- a structure that collects its own water and generates its own energy, with a zero carbon footprint.
Only three buildings in the country currently qualify as living buildings -- the Omega Center for Sustainable Living in Rhinebeck, N.Y., the Tyson Living Learning Center in Eureka, Missouri, and a private resident in Victoria, BC. This would be the first in any urban area.