This year, Build it Green celebrates the completion of its 10,000th GreenPoint rated home. Through the Greenpoint system, Build it Green awards points for energy efficiency, resource conservation, indoor air quality, water conservation and community consideration in new projects as well as renovations. I recently toured a renovation in Albany, California, that fetched a whopping score of 231 out of 300 possible points. While every design gesture was carefully thought out to maximize its green potential, the home is remarkably comfortable and liveable and it doesn't feel like like a theoretical or conceptual exercise—everything just makes sense. Click through the slideshow for a look at the residence and the measures homeowner and architect Ian MacLeod undertook.