The result of equal parts serendipity, exploration, creativity, and the enduring persistence of a dedicated team of designers and its university client, Washington University’s Living Learning Center, has quickly become a locus of sustainability. It is a deep green place filled with fresh air and daylight, an ongoing achievement in zero net waste, zero net water, and zero net energy design, a space that inspires higher learning about the natural world. The Center is also well on its way to certification as the first living building in the world.