One of three new models from Michelle Kaufmann, the Ridge is designed to withstand cold climates and still meet net-zero energy goals.

Now that LEED is old-hat, architects are starting to talk about net-zero buildings: ones that produce as much energy that they consume. Prefab pioneer Michelle Kaufmann just announced three new prefab designs that are net-zero, offering them through a partnership with Bay Area company Studio 101 Designs. The models start at 422 square feet at a cost of $66,500 ($158 per square foot). Read More