What do you think of sustainable houses?
The technology used for building is improving every day, but if it's a super energy-efficient dwelling you're after, the tools are already well at hand. Once a year, the Northeast Sustainable Energy Association organizes a green buildings open house where energy nerds like us can see the latest in home efficiency. 


Source: CNET

On the other hand, if you want to built a different house, to be in harmony with nature. You might want to consider these inexpen...
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