99 Roble Road, a three-bedroom home in the Oakland Hills, near Rockridge, is offered at $1.125 million. On the upside, the energy bill evidently runs only $30-$40 per month! The straw-bale walls absorb the sun when it's out and radiate heat when it's dark. The owners also installed radiant heat in their wood floors, so the house represents an interesting mix of new green technologies and old.
SFGate has more details in yesterday's feature about the house. It's fun to read about how this home came to be; apparently straw-bale building requires minimal skilled labor, so the owners threw "raising" parties, inviting friends to come and stack the bales.
For more photos, see the home's online listing at Realty Advocates.