Originally Posted by Steam Guy:
Mike CT,
I agree with you with regard to cinder block construction "dating the house". But these are new houses, many of which are yet to be built. Most likely it is concrete cast block, and appropriate structural detail has been done to pass UCC inspection. There should also have been a footer inspection and waterproofing inspection. There are some interesting products out there, that allow for insulation in a poured assembly wall that is a good bit different than the traditional block construction.
Mike
Steve