I knew someone who lived in the building, and while she didn't report cracks in the walls, she did say that things would reliably roll toward one corner of her apartment if they weren't secured.
I'm not sure what this. Guessing maybe 120 feet, e.g., gives a tilt of 180/pi * arctan(14/12/120) = 0.56 degrees.
http://www.concretefloors.ca/?page_id=546
http://www.betagroupgc.com/Concrete%20International%20-%20Th...
The maximum slope b=rise/run compatible with this is b_max = (314 mm/3m)/F_L = .105/F_L ~ 0.005 for F_L = 20,
https://www.astmfree.com/wp-content/uploads/2018/01/E-115-M....
which corresponds to 0.005 radians = 0.3 degrees.
Projects like roller rinks and warehouses that use air pallets require more level floors, but typically only by a factor of 2 .