Fake Wall ??
 

If you look to the left of the snug you can see some sort of temporary wall covered by leafy foliage.

http://i45.tinypic.com/2hnvzpi.png

Wonder what that could be
Could just be a fire exit but one can hope for more exciting possibilities! :joker:

wonder whats behind it

That's where the entrance to the BB10 Living room was, aparently it's going to be opened up as a new living room soon. Either that or they're decorating it for BB11 and don't plan to use it for CBB!

Could be a big door to fit large task equipment through into the garden

That sounds logical

Agreed.