My daughter is planning on moving back home to save money for her own place - she moved out to rent a place with her then partner at 18 and has since broken up with him. The plan to move home is to help her save money for her own place now at 21 and I was aiming to charge her £100 a week. She is not happy with this as she pays just slightly more than this where she is now so she won't be putting much more in savings away and is a 3rd year university student. I have taken into account then when she gets her first job her take home pay will be about 1500 pcm from August. The £100 a week would include the room and bills but not food or chores and I would also expect her to look after her younger sister when I am at work. Is this amount of rent an unreasonable amount? She has her own car and phone that she pays for as well.