Hello!
A house from the 1920s that is being renovated; I need to level the floor on the upper level as there is almost a 5 cm difference in level over about 1.5 meters. I started removing the plank floor and found this underneath. Uneven bricks. The wall to the left is the chimney, and underneath is just a hallway.
What's the best thing to do? Start chipping away the bricks and frame it up or use self-leveling compound to even it out?
Could the bricks have any load-bearing function or the like? According to the original drawings, there was some form of fireplace here.