The housing didn’t just appear. It just didn’t have a definite value until sold. As with all things of value, the housing was created through human effort. The tree that became the lumber to frame the house had no current value until human effort turned it into lumber.
They can now go out and find another community somewhere else and buy electric radios, dish washers and maybe even those combo plastic back scratcher shoe horns!
The Schmoos can take a break for a few days. Their banker can also lean back in his executive chair and luxuriate in his new reputation as a RICH BANKER.