Sub-terranean structures rarely fully dry out. What is the actual issue? So far all I'm seeing is a typical poured concrete structure that is showing typical signs of being underground.The whole basement ceiling is in a terrible state its the foundation of the flats. Ground floor flats ontop the pictures show the ceiling is this a structural issue or will it dry out thanks
. Im getting moisture in my flat because underneath is soaked.
Houses sit on soaked ground all year round....?No plan on living down there. Im getting moisture in my flat because underneath is soaked.

I had to move out for 9 months it was riddled with mold, after 7 weeks so no its wasn’t and isn’t condensation. Thank you though for your guess.