Sorry no explanation of pics. That's a hallway/entrance where my kid is standing by the block. Kids part is an old two car garage and was wood walls. I built every wall inside the new parts out of block closets, bath, kitchen bedroom and pantry. I forgot a footer under the office area (the hardwood part) so a small bath got light wood frame and drywall. Our bathroom shower will be the nado shelter. It's stout. Floor and ceiling is solid Crete.