Case Studies

The Center for Human Ecology was designed by OPAL to Passive House standards despite being located in a cold climate.

Image: College of the Atlantic


They say the road to Hell is paved with good intentions, but our case studies prove otherwise (at least sometimes). Check out these resources to find out how sustainable design actually turns out in the real world. You might be surprised! 

  • America’s Greenest Office Building

    Blog Post

    The Bullitt Center in Seattle is showing that a six-story, 52,000 square-foot building can meet the net-zero-energy, net-zero-water Living Building Challenge