Your information on here has been invaluable.

I'm currently renovating my house to fit the five of us. We've designed the house with three future teenagers in mind, so we can stick them way down the other end from the parents. 

In the meantime, we will be having an au pair who wouldn't be paying rent but I would assume wouldn't be considered 'related'.

I'm sorry for asking what seems like a silly question, but would this mean we can't have this sixth person?

On top of the au pair, would it not be then okay to rent out one room to a student (I'm not talking separate kitchen or other granny related features here).

I know these aren't technically investing questions. I'm not trying to skirt around council but I find their rules and regulations impenetrable and I find it weird that if we had one child or two, the above scenarios would be unquestionably allowed.

Thanks for any help you could give.

Nick