We shape our buildings; thereafter they shape us. Winston Churchill could have been talking about green buildings when he said that, since the built environment gives shape to much of modern life — and to our planet.

But what is it that turns an ordinary building into a green, sustainable, healthy place to live and work? Architects, engineers and builders are constantly developing new materials and processes to design better, smarter buildings, but these seven hallmarks of green buildings seem to remain constant.

Source:What Makes a Building Green?