OMG! I had no idea. The few eminent domain cases I've known up close and personal were road rights-of-way, where the dominated seller came out pretty hunky dory.
Your case is pathetic and should be unlawful - seriously. I hope your replacement home situation made up for at least part of the loss.
My case was a city park next to a river. The city attorneys knew there was no way in heck myself and the others could afford to fight it.