Hi I own a end terrace House that is concrete all round (all 4 walls and all ceiling and floors) and in the middle of the house down stairs I have a wall that is 2 inchs thick between dining and sitting room, it looks like it has been added by the previous owner as the houses on my stretch are all concrete too and they don’t have this wall, the concrete stretchs from one side of the house to the other, a 2 inch wall wouldn’t be a load bearing wall, plus I think its wood not plasterboard I wanted to check before a cut a hole to see. there no electric in the wall so that’s what makes me think it was added after?