I recently returned from a vacation wandering around the Ozark Mountains in Oklahoma, Missouri, and Arkansas, and was amazed to see so many stone houses. This style of building has obviously been a vernacular art for at least two centuries, since many of the buildings were quite old. I would estimate that something on the order of 5% of the residential construction in that region is done with stone walls. I don’t know if these houses are insulated on the inside (I hope so, given the seasonal heat and cold they must endure.)his is a picture of one stone house that happened to be for sale, with about 3 acres of land for about $90,000 US. Some of the wood around the windows was rottiong out, but the rest of the structure appeared sound. One of the beauties of stonework is that it can last for centuries and be as sound as the day it was originally built!