Thinking it’s weird that his 18 year old will have the master room

Of course YABU. It's her room!

I wouldn't move in, you will try to be in competition with his daughter to be the most important and it won't go well.

Leave her in her room and suggest making one of the smaller bedrooms a closet/dressing room.

I think it's weird she has the master bedroom in the first place 🤷🏼‍♀️

But I guess that's how they do things and the only way that would change would be for her to move out or for you to buy a home together.

This was my thought. If it was a new house for everyone it would make sense to give the biggest room to the two sharing however for you to move in and move her out of her room is a sure fire way to breed resentment.

I don't think it makes you a guest. I also dislike the concept that certain people in a family need to come first or second ( also breeds resentment) but rather each situation needs to be addressed on what is best for everyone involved. If the only real issue you have highlighted is storage ( the walk in wardrobe) then you DP has offered a solution of additional storage space in one of the other rooms. I don't see this as an issue.

Oh, dear 😂

Do you really think you can go in there, throwing your weight around and demanding his daughter be kicked out of her own room because you want her walk in wardrobe?

If this is the attitude you intend to go in with, I'd suspect you're not going to last very long and to enjoy their 'gorgeous 4 bed home' while you can

I think if I was him I would be rethinking your moving in. What a horrible thing to even suggest. I bet you've planted a seed of doubt in his head now about how things will be going forward, if this is real ....

Yabvu op. It would be the beginning of the end.

Wow, this is not going to go well. Leave everything relating to his daughter alone. His house, his daughter you are very new to their life okly 4 years and will be very new to their house when you move in.

You appear to be very unaware of others feelings, try to change that.

This has got to be a bloody wind up??? Nobody can possibly think the best course of action is to move in a house and turf the daughter out of her room because it’s bigger???

My daughter has the bigger room as she spends more time in there, has friends (2/3 at a time) sleep over. I literally go to bed and get ready in my room, I have the whole house to ‘live’ in.

Unless you want the relationship to come to an abrupt end, I’d park this idea as a bad one!

Yep that's why our eldest has the biggest bedroom.
It's not weird, it's good sense.

If he's currently using the office, surely it'd make sense for him to use it for storage for more clothes?

I agree with him. I made a similar choice with my children for the same reasons.

Seriously, I agree with those who say this will likely have raised a few alarm bells with him. I'd back off and leave it if you don't want to be kicked out before you've moved in.

OP, if that’s your approach to building a relationship with his daughter then I think this relationship is doomed. She will absolutely hate you if you turn up in HER house and turf her out of HER bedroom.

It’s not weird OP, I had the biggest bedroom too with ensuite. If you want this relationship to work and live with him and his daughter, stop bringing it up and certainly don’t ask her to move. She will resent you forever and personally I would choose my child over a new partner any time.
There is enough space for all of you in a 4 bedroom house. And sounds like you have massively upgraded anyway.

You don't want them to think you're entitled - do you?

Well first off, I certainly would not be selling my own property to move in with anyone but that's beside the point.
I don't think its weird for his daughter to have tbe bigger room. It's obviously what their set up is and what works for them, so leave well alone.
I think it was cheeky of you to even suggest it tbh OP! 😬

There is tons of space for everyone but you want this girl to give up her bedroom for you. Isn’t it enough for her to have to suddenly share her home with another adult?

Massively unreasonable

His point is a good one. You have the study for more storage. You don't need to move. Drop it and ask again when she actually moves out. If it lasts that long.

I think that was rude of you.

Looking forward to the thread horrified that he’s leaving the £2.5m house to his daughter and not OP

YABU

It's not weird that she keeps it. Her dad moving his partner into her room when she's away at uni would be awful. How do you get on with his daughter now?

It can be really difficult moving in to an established family home. I did it and found it harder than I thought, and we moved into a new house we bought together a couple of years later. It's definitely worth talking through how you and your partner can make the house feel like yours too. (I'm thinking decorating your bedroom, and not just keeping his sofa/kettle/bathroom bin because it's already there if yours is nicer/also adequate.) Could the guest bedroom be your space?

If you live together for two years, and the relationship is solid, and you think you're happy to keep living in his house long-term rather than buy something together, then have a conversation about what will happen with the rooms after she finishes uni. You might be happy in 'your' room by then, or you might agree to swap when she's finished uni/is 24 like your son when he moved out/30 when you really expect her to leave.

In London you'll almost certainly be living with his daughter for a long time so you need have a good relationship with her too to make this living situation work.

I think it makes perfect sense that she has the bigger room to be honest. Like he says, as an adult you spend most of your time in the kitchen/living area, you just go to your bedroom to go to sleep. Teenage girl will basically live in her bedroom.

Also can’t imagine someone inviting me to move in and then me suggest they should take their daughters room from them! Not you house, not your child, not your business.

Absolutely.. Not a great start if you want your own way already. You haven't got a clue about teenagers. Are you planning to bring a baby into this set up. I hope not for everyone's sake.