Yes, I'm so common. Such a chav, such a basher. I'm even middle-aged, too, but don't have to private rent anymore. Still, it's like a tatt on one's forearm, my status can't be erased. It's unbelievable, that I'd advise a potential tenant not to serve as paid storage unit for someone to whom she is paying for the hire of space.
What is the world coming to, that someone who has not turned in a signed contract does not wish to pay full rent to store furniture in space for which she has paid?
Perhaps she should go into the business of self-storage?
Who knows, but this unwanted furniture is not her business nor her concern.
When you pay for a hotel room, pray tell, do you expect to find extra furniture in your room? Do you expect to find the hotelier, checking up on you, whilst you are enjoying the space for which you have paid for hire, if you are not causing undo bother?
Then why accept it from one to whom you pay for space to live?
Don't turn in the fucking contract until that LL has taken every piece of tatt shite that you don't want out of that place!
Who cares what it costs him? That is neither your problem nor your lookout.
You are paying for the hire of the place, unfurnished. Same as you do any other space: a storage unit, a hotel room, a car, even.