"The house is where we experiment," Andrew Dunbar says. "We weren't so much trying to do 'green' as just wanting to be able to live in a better way." But the architect and his wife, landscape architect Zoee Astrakhan, weren't simply experimenting for the sake of experimentation. The ideas the resourceful couple incorporated into their 1908 Edwardian in San Francisco's Mission District made the most of what they could afford, providing elegant finished solutions that belie the design's humble origins. Also housing an art gallery and the couple's office, Interstice Architects, the renovated building acts as a powerful showpiece for the designers' capabilities.