Built 1908, Michael Boal's 2,200-square-foot Berkeley home was “remuddled” a few times over the decades, but still retained much of its traditional style. Boals brought in David Grubb Construction to rebuild the back of the house while preserving its nearly 100-year-old spirit. “Green building principles were used from literally top to bottom for this project — from the photovoltaic panels on the roof down to the high flyash concrete foundation,” says Grubb.