The 50,000 sf Bullitt Center in Seattle is being constructed to be the greenest, most energy-efficient commercial building in the world, and meet the ambitious goals of the Living Building Challenge. “We were shocked to learn that it is flat-out illegal to build this sort of ultra-green building in any city in America,” says Bullitt Foundation President Denis Hayes. “But Seattle changed its building code to allow super-green buildings to meet performance standards as an alternative to prescriptive standards. We wanted the design flexibility to construct a building that used less than one-fourth the energy of a (standard) code building.”
(http://cleantechnica.com/2013/01/24/how-nrel-influences-new-high-performance-buildings/)
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