Take a passive house, produce at least as much energy as it uses and you get net-zero. Take a net-zero passive house, produce enough energy during its service life to offset the carbon emitted during its construction and you get carbon neutral.
A group of designers, engineers, and consultants, based out of Asheville, NC are doing exactly this. The Nauhaus Institute is incorporating Passivhaus building techniques along with various other concepts to achieve carbon neutral building and living solutions.
Their first building, the Nauhaus Prototype, is a 1700 sq. ft., 3 bedroom, 2 bath, Craftsman style home currently under construction in Asheville, NC. To view the features and plans for the Nauhaus Prototype, see below or visit the Nauhaus Institute - Nauhaus Prototype Project.