Street of dreams isn’t really like that. They hold it in the Seattle area every year where they build some show homes, and much of the materials and appliances are donated to show off the latest designs and technology. The local firms use it as a advertisment for products and services when people tour. Because of that, part of the profits from the home sales go to charity, etc....
I heard this year they went overboard with the “green home” thing so its quite ironic that E.L.F burned it down.
There is nothing “green” about a $2 million home.