Actually it is a lot of money for here. Especially since it is just a 3-story building. Need to watch video again to see if one floor includes underground garage. For approximate US conversion, please multiply everything by 3 or 4 X.
I am starting to suspect that some well connnected 'brother' got in over his head and reached out to the branch to see if they might be interested. Pure conjecture, but will follow up. They could have constructed same building in Lublin or elsewher in depressed areas of eastern Poland for much less.