Husband-and-wife John Murphey and Marcie Meditch teamed up to design a single-family home that could appeal to their eco-friendly interests. After tearing down their 1920s Chevy Chase home, they built a geometric modern abode in its place that has twice the insulation of typical homes, natural ventilation, a geothermal heat pump, and solar panels. There's also an electric car charging station for good measure. On the rooftop, there are also two gardens with Japanese maples, basil, and tomatoes. The home is so sustainable that it has close to a net-zero environmental footprint, according to Washingtonian. The couple recruited landscape architect Sandra Clinton to help design the home.