Creating sustainable futures/CSF101/Sustainability is possible/Living buildings
Originally developed and launched by the Cascadia Green Building Council in 2006, the Living Building Challenge is acknowledged as the world’s most progressive and stringent green building code. It poses the challenge of designing buildings as nature designs. How do you create a building that harvests all its own water, produces all its own energy, and manages all its own waste-water on-site. These are just 3 of the 7 requirements for a fully certified living building.
There are currently 3 projects that have received full certification under the Living Building Challenge, with 4 others having been partially certified. As at October 2014, there are 90 projects currently in some phase of design, construction or operation. 
- Data retrieved on 28th October 2014 from https://ilbi.org/about/faq#how-many-living-building.