Had to double check the video: We saw a mystery room with carpet and grey walls, the living room and the bedroom right besides the living room (I think). And the at the end of the house is the kitchen and the garden. Have not been shown the bathroom.
I do thin that there is a second bedroom, were else are they going to store all of their clothes because there is no space in the bedroom. There has only been a quick pan over the hallway so I don't know how big it actually is.
Is Grubby in the same area? The house must have cost quite a lot considering Grubbys flat.
I think she completed the sale a while ago, and things were a bit on hold because of the virus and the fact that she did not want people to find her house. I could be totally making this up, but I think she mentioned in her house buying video that she was waiting on telling us after everything was completed so she knew she got the property and so people cant find it.