13. A Veneer Wall of Brick
If you go down to a cellar constructed more than a hundred years ago, you can see that the walls are made of stone. This is a perfect style for individuals who enjoy history. Some may have a newly constructed home, but they also want to feel like they're moving into a place that's been around for a long time. So, installing a stone veneer wall is a way to do that.
At every Home Depot or Lowes, you can find the supplies to do this, but you can still order all of the equipment online. It is also enough to have only one accent wall to achieve the theme, so it should not be appropriate to build stone walls in the entire basement. This may be a couple of hundred dollars, or a few thousand, depending on the amount of room you choose to protect.