Our neighbor in Moultonboro had it done. I think it was about 5 years ago. Unfortunately I don't know who did it or how much it cost. They had a crawl space and instead of digging for a foundation chose to elevate the house a few more feet and create a walk out finished basement. The house was supported on several beams and jacked up using the existing crawlspace walls for a base. Then new walls were poured and the house lowered. Overall the house probably ended up about 4 feet higher. At the same time they added some interior insulation by, I believe, adding the insulation and rebuilding interior walls. They lost a bit of interior space but not too much. Overall it turned out nice and the house can be used on cooler nights without a problem.
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