I recently had a kitchen renovation and the builder removed a stud wall between my existing kitchen and dining room. He assured me that as it was a stud wall, it would be non load bearing and the existing first floor support beams would be sufficient to provide a stable support. However, although the stud wall should be non load bearing, I am concerned that the original builder may have used it to provide some structural support and possibly reduce the size (cost) of the first floor support beams. Do I need to concern myself about this, or would the building regulations have prevented this happening?