2 and a half days. That's all it took to install the Ray Kappe designed 4 million dollar prefab homage to green living. Not bad, we say. It's sure to make the neighbor's jealous (and inspire them to go green?). If you wanna see how the other half lives, tickets are available for purchase (for $35) for a public tour of the home (it's in Brentwood)from now until the 10th. But check out the website for all the details.