Alright so I believe is not allowed that's why I said "possibly" but if we take a baseline street level (300 j) and we compare it with a wall (15kj) we have a difference of x50 (if you take human to wall is like x250) considering that's kinda the difference they show when Yu
punches Aaron and the difference between small building+ and building is only 0,25 / 0,1275 = 1,96078431372549 and the difference from baseline small building to building is x50 but they are far higher, believe we can consider to put a possibly building (otherwise it will just be "at least far higher), we can even consider that because if Aaron would have land a single punch on Yu the match would have been over so is another one shot.