![Example of a trendy open concept concrete floor and green floor family room design in San Francisco with black walls and a tv stand](https://st.hzcdn.com/simgs/pictures/family-rooms/second-street-green-paul-welschmeyer-architects-and-energy-consultants-img~7931e630010ad1d3_9-6283-1-d8a0e24.jpg)
Second Street Green
Contemporary Family Room, San Francisco
Michael O'Callahan
Other Photos in Second Street Green
What Houzzers are commenting on
![](https://st.hzcdn.com/simgs/89931677084b9b7a_0-0046/_.jpg)
erica91 added this to Rear Addition & Entry areaMay 29, 2023
room looking out, stairs down to basement, side entrance door
Yet there are fly ash skeptics in the green building community, too. For one, the carbon footprint of coal fly ash may...