I am very happy to see that we will have a new Plat House build to follow this summer. A customer in Pennsylvania is building the very first Plat House in the Quaker State, and I know I am looking forward to watching this one get built. I may even have the opportunity to visit this one - a rare pleasure.
What you see here are a pre-cast concrete foundation wall product called Superior Walls. They prep the house footprint with a stone bed, and the pre-cast wall sections are brought in and placed without a conventional footing. Very fast, very tight, pre-insulated. Not inexpensive, but a great product.