Uneven floor mystery

[Nikki Berg]

I am hoping someone in this group could help shed some light or info on my kitchen floors. We just recently moved into a new home. The house is about 5 years old. I noticed in the kitchen some sloping so I hired two foundation expert to come out and check out foundation. Both said house was built great and no foundation problem. They did say their lasers indicated a 1/2 inch slope in kitchen and that was what I was feeling but had no reason to why. One thing strange is the countertops are all level. I found out the original owners had decided before house was finished to make their kitchen bigger and it seems where they did is the slope. Would a add on to home where house wasn’t complete cause this? The kitchen has a basement below it. The basement is finishe. One of other tidbit of information is that there was a hose leak into the room below. Into the window well. Those coukd explain it except  there doesn’t appear to be sinking in basement floor port or foundation. Where the room line is added i think does go up 1/4 inch before drop. HElp! It is driving me nuts.  

[Max T.]

Since your floor is not level but the cabinets and counters are, it is pretty clear that the addition was not properly installed. They made a 1/2 inch mistake creating the addition and then compensated for it by making sure the cabinets stayed level. You have confirmed with several contractors that there is no foundation problem. The young age of the house eliminates the possibility of settling. 

Whoever put the addition in made a mistake creating that section of subfloor, then tried to correct the mistake moving forward instead of starting over.