Hello. I did not use the exact dimension for the mansion. I used approximations to make the mansion fit for a 5x5 foot grid. So about 1.5x1.5 meters for each square. The actual map from the mansion doesn't fit perfectly on that grid, so I had to change the dimension of several rooms. But I tried to keep it as faithful as I could. If you want a more accurate blueprint I recommend using the wiki: https://www.evilresource.com/resident-evil-remake/maps