Converting a Barn into a House – this article will show you how to make that dream come true. We’ll walk through the cost breakdown, how to turn a barn into a house, and provide some before/after’s. You’ll need to put a new foundation under your new/old barn home. Then you’ll need interior framing, drywall and finally, a new roof. Is it cheaper than building a true barndominium or post and beam barn home? And is it worth it in the long run, to make your dream of living in a barn true?