Sustainable Housing South Boston Triple Decker Cambridge Passive House 7 - 9 Springfield Net Zero Lake House 12 Glen Boston Passive House 110 Hampshire St Net Zero 40b Development 112 Hampshire St 22 Newbury 14 Carlton 22 Springfield St 23 Jackson St. 25 Jackson St. 56 Upland 466 Putnam Ave 6-8 Porter Park 13 Quincy