
Cradle 2 Cradle Home by Coates Design Architects
Roanoke, Virginia
The C2C Home takes "green" literally.
When Matthew Coates and Tim Meldrum won the 2005 C2C Home   competition (judged by William McDonough, Daniel Libeskind, among  others), they  hoped to see their renderings develop into an actual  residence. But three years  later, the team is waiting for technology,  and funding, to catch up to their  vision of a home that is  off-the-grid, thanks to the help of Popeye’s power:  spinach. 
The C2C design reinterprets an age-old concept: the hearth.  Made from  concrete and steel, the 1,600-square-foot L-shaped home is topped  with a  tapered whirling chimney-like core that extends high above the roof   plane. This core serves as a louvered skylight and  temperature-stabilizing heat  sink for the one-story home, and could one  day support its revolutionary  cladding: a conductive material that  produces photosynthetic energy generated  from spinach protein.  
Based on emerging technology and scientific research,  spinach protein  cells sandwiched between glass may have the potential to  generate  energy. This living facade would not only be photosynthetic, but   phototropic too. It would grow to follow the path of the sun, generating   electricity.  

c2c house interior
The facade is not the only green element of this home. Glass  and metal  panels insulated with soy foam comprise the exterior walls. A green   roof absorbs and filters storm water through vegetation and soil while  two  large openings in the roof funnel rain to the building core. There,  the rain is  stored to serve for plumbing, flushing toilets, and other  household needs. A  bio-filtration system naturally breaks down and  separates solid human waste  from black water and then filters the black  water under and alongside the house  through a series of subsurface  gravels and soils, from coarse to fine. Thus,  the house does not  require connection to a sewer or septic tank.  
Coates  Design Architects
921 Hildebrand Lane
Suite 210
Bainbridge Island WA 98110
921 Hildebrand Lane
Suite 210
Bainbridge Island WA 98110