Outdoor, Back Yard, and Grass Among the first Passive Houses in France, this bamboo-clad farmhouse by the Parisian firm Karawitz Architecture only uses a tenth of the energy a conventionally constructed home does. Photo by Nicholas Calcott.  Photos from Passive Acceptance: 7 Energy-Efficient Homes

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Among the first Passive Houses in France, this bamboo-clad farmhouse by the Parisian firm Karawitz Architecture only uses a tenth of the energy a conventionally constructed home does. Photo by Nicholas Calcott.

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