Floor Screeding

[irw]

Just out of curiosity is the doorway on the other side of the room the same height as the floor where the X in pencil is ?
It looks like its a lot lower.
If this is the case then you may need a re- think regarding levels and possible changes to the hall or other room level.

Ive screeded 1000s of m2 btw for all manor of finishes

Not as low as it looks in the picture- for some reason it looks like a gaping chasm in the picture, but it's only 10mm or so lower than the X- once I've got the main floor sorted, it will be an easy enough job to sort that out. Eventually everything should be the same- luckily there's plenty of clearence on the bottom of the main front door.