Hi everyone,

I recently purchased a home that was constructed on a slab foundation. When you walk into the house there is a small entry way that is approximately 12" lower then the rest of the house, there are 2 steps you need to walk up to enter the core area of the house. I just assumed that there were sleepers installed but when I pulled up the carpet I noticed it was all solid concrete.

My question is , could this be a solid slab that is up to 16" deep in the core area of the house or is there some other explanation for this?