I like to have our rabbits out in the main area of the house (and with the cage door open all day). In the main area they are where the action is and so are more able to interact with us throughout the day.
The other advantage is that they don't bother anyone at night. Rabbits are active at night and can make a bit of noise playing with toys or doing whatever they do. (Water bottles are especially noisy, but attached water bowls will solve that issue.) Heavy sleepers may not be bothered by a rabbit in the same room, but lighter sleepers will be.
Thank you for your reply
Thanks for the links - I'd seen them and pinched a couple of ideas.
Our girls have their own bedroom which they get shut into at night and they get the whole house during the day. We can't leave then out at night as that's when the hamsters are active and likely to nip bunny noses.