Located in Lake Tahoe, Calif., this modular, steel-frame house by Blu Homes offers radiant heating, foam insulation, and tankless water heaters.
Built by KRDB, the Snowhorn House in Austin uses structural insulated panels and a steel frame. It received LEED Platinum certification.
The SIPs-built Hilltop Craftsman House has a HERS rating of 37. Designer Peter Bergford used triple-pane windows, a heat recovery ventilator, and a ductless heat pump in the Olympia, Wash., home.
With a HERS rating of 20, the GO Logic Home by Matthew O’Malia is a Passive House–certified building in Belfast, Maine. It uses SIPs and timber framing.
The High Desert itHouse by Taalman Koch Architecture is built with steel framing and steel panels. Built without an HVAC system, the home features solar hot water, radiant floor heating, and solar panels.
ZeroEnergy Design used a panelized system to create this New England farmhouse in Concord, Mass. Among its many green features are salvaged products, cooling chimney, radiant heating, spray foam insulation, and exterior rigid insulation.
Built with modular technology, the C3 Prefab in Chicago features an energy-recovery ventilator, solar thermal panels, and ductless mini-split system. It was designed by Square Root Architecture Design.