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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To not provide DSS with a room

594 replies

Moorside111 · 28/06/2025 22:30

Currently living in rented accommodation with partner, our baby, my daughter from ex marriage and his son from his ex marriage. Both step children are 50/50 with their other parents. We currently live in a large house with lots of space and a bedroom for everyone. But the cost of this rent and associated bills is astronomical and we need to either buy our own 4 bed house or rent somewhere cheaper.

My partner earns double what I earn and works long hours. I have a less demanding job and so do most of the housework and childcare for our baby. This might sound ok- apart from the fact that we pay half each of the rent and bills for our current home. So I really feel like he’s onto a pretty good deal. I used to do childcare and school runs for DSS too and recently stopped….but that is another story.

I own a three bed semi, bought with the proceeds of my divorce, which I lived in with my daughter before I met my partner. It’s a lovely house which I renovated and is in a nice desirable area. It’s been rented out but the tenants have given notice to leave in August.

My partner sold his marital home, gave his ex wife 2/3 of the equity and has since burnt through the rest of the money. He has nothing for a deposit for a new home and so we need to sell mine, which would give us a decent deposit for a new 4 bed house.

Ive decided that I don’t want to move to another cheaper rented property, they’re rarely decorated nicely, don’t feel like home to me and I’d probably have to live in a less nice area to get the size we’d want for a cheaper price. So I’ve decided to move back into my 3 bed semi, spruce it up a little bit and eventually sell it- I’m estimating this might take 12 months or so. My daughter loves this house, it’s near school, friends and her dad. She’s looking forward to going back to her old room. When I initially told my partner that I thought this was the best idea, I discussed it with a view to us all moving there together- it would be cramped and not ideal- but it’s a home and only a stepping stone to us buying somewhere bigger. I suggested we put our 1yo baby in with us and decorate the 3rd bedroom for his son. He didn’t like this idea, said I wouldn’t put my daughter in the small room so why should he put his son. He said he’d rent a house so that his son could have more room and when his son was at his mums he would stay with me and our baby.
He suggested that his son and our baby could have the second double room and my daughter have the small room. This might be where I’m being selfish as I won’t compromise on my daughter- the room was hers to begin with, I don’t want her impacted by my choice to blend a family. She was happy to move in with partner and son btw and they all get on well so there’s no issues there. But I also selfishly don’t see why I should impact my daughter for someone else’s child.

We left it like this until this week where he’s realised the move is imminent and he’s now decided he wants to move to the three bed house with me. He said he doesn’t want to live apart from me and our baby- and I don’t want to live apart either. However, I’ve now planned to have a bedroom for each of my children. I going back to work this week, our 1yo is starting nursery, he’s a light sleeper and for the sake of both of us I think he needs his own room for a good nights sleep instead of us waking each other up in a shared room.

my partner has now decided he’ll convert the integral garage for his son so that he’ll have plenty of space. I initially said this would be ok but I’m now feeling uneasy about this too. He’s planning on doing this renovation himself. I didn’t think much damage could be done until he said he was planning on taking the garage door out and getting our friend to fit in some french doors so it would look more like a room. I have two issues with this:

1- friend has done work for me before and it’s shoddy. I worry what the finish of this DIY project will be.

2- the garage door was only put in a couple of years ago, it was expensive, it’s remote electric and matches the front door. The garage was newly rendered and it all looks smart from the road.

AIBU to say no to this project? It feels selfish and I’m basically saying I won’t allow a room to be made for DSS. Creating the room allows us to stay together and still have DSS over to stay. Surely lots of people would do anything to keep the whole family together.

i feel selfish, but also a bit angry that everything has fallen to me- childcare, bills, providing a home. Now I’m potentially damaging my home, my only asset, so that I can house his son.

I realise the phrase ‘his son’ sounds horrid from a step mum and it’s not a reflection of how I am at home. I care for him, treat him the same as my daughter and son. But in reality he has a mother and father- and it feels like his father’s job to ensure he has a house big enough for his family.

OP posts:
Teaacup · 29/06/2025 10:59

Moorside111 · 29/06/2025 10:27

Just to update a few things:

He received his payout from the marital home when I’d only been with him a few months. I didn’t ask about his financial situation or how much he had received. It wasn’t my business, we didn’t have a shared child and I had my own home and separate finances. He was renting an apartment at the time and didn’t seem to have any money worries. He took us all (my daughter included) on an expensive holiday and used the rest as a deposit for a car and to pay off some credit cards.
I knew he’d used the money to do this but didn’t know that was all of his divorce money. I’m sensible with money and would’ve said absolutely not to the holiday and car.
I know he’s always planned on buying and I guess he thought that he didn’t need to save his money as if we bought together there was a good deposit available in mine.

I’ve read and taken on board all of the good advice here. There would never be another house jointly bought without proper legal support to ensure that my deposit was safeguarded as mine.

in terms of the garage conversion, I’m going to make it clear today that the garage door stays in and anything else that is done is completed by a proper company with correct building regs. I suspect at this point he will say he doesn’t want to do it…..and then the next decision is up to him.

As people have rightly pointed out, it may be beneficial for him to live separately until he has some savings. I’d comfortably pay my own bills and receive CM from him and he’d have to look after our baby when he wanted to see him.
I’d even have a nice peaceful life with half of the laundry, cooking etc to do 😀 That being said, I really would like to keep the family together and I’d really like him to go and save some money up to help us buy a new house.
It’s also been pointed out that any stamp duty, legal fees etc would have to come from the equity in my house

How long have you been together? Don’t move him and his step son into your house.

Luddite26 · 29/06/2025 10:59

LotaWyseWomen · 29/06/2025 10:40

Its’s also been pointed out that any stamp duty, legal fees etc would have to come from the equity in my house.

How can you not see who he really is? He love bombed you with a holiday and nice new car. He is financially illiterate, grabby (what’s yours is mine and what’s mine is mine) and doesn’t pull his weight. If you let him, he will continue to take from you forever more. Ive read posts on here in the past of women, who’ve bitterly regretted selling their home to buy with a man just like this. Or one, who’s abusive in sos way.

Yes, go and have a peaceful life with half of the cooking, laundry etc.

This sums it up after your update. Holiday definitely love bombing
If you carry on sqe how it goes and financially. But each time you update you sound capable of a better life without this bloody cock lodger.
And when you wake up in your 50s and Realise you've subsidised these manipulative cock lodgers you realise how much more you could have done e without them or found someone who is a team player.
You have put yourself back with another baby and you are going to do all the running with childcare so he can carry on with his good income which he just spends like pocket money. He has sacrificed seeing his son more because he can't do school runs because of his amazing career but was quite happy for you to.
Come on value yourself now because when you get to your 50s and they've took everything you are left wondering why. You are worth more.

Moorside111 · 29/06/2025 10:59

LotaWyseWomen · 29/06/2025 09:44

I don’t see the issue with this at all. Op and her ‘d’p are currently renting another property, which will be costing even more, probably more like 2.5k. And the 1k is nothing like 1k after she’s paid tax and other associated costs and fees. If she had a 100% mortgage on the property, it would be more like 1.6k and she’d still be liable for repairs whereas the tenant is not.

And she really doesn’t have to create a bedroom because a man can’t be bothered to house his own child. She’s already housing their joint child and he’d told her he wasn’t moving to her 3 bed.

The mortgage is low because I had a sizeable deposit- more than the amount a first time buyer would have. This equity was built up over 15 years with my first husband (he got his fair share too). we worked hard and bought property at a good time. I wouldn’t have been able to get the mortgage on my one wage if I didn’t have the deposit.

I don’t believe I should rent my house out for less than the going rate just because I was fortunate enough to have a smaller mortgage 😊

OP posts:
tara66 · 29/06/2025 11:02

I don;t think you have said age of SS? Would he actually be happy to have garage as his bedroom? He will be located outside the communal area of the home unless you can make a doorway through to rest of house? Also will he have to go out of garage and in through main door of house to use bath room or can you make an en suit in garage? Not very realistic from many angles, a lot of work, hassle, expense and you want to sell it soon? All on your shoulders.

Retrouvailles · 29/06/2025 11:02

Moorside111 · 29/06/2025 10:27

Just to update a few things:

He received his payout from the marital home when I’d only been with him a few months. I didn’t ask about his financial situation or how much he had received. It wasn’t my business, we didn’t have a shared child and I had my own home and separate finances. He was renting an apartment at the time and didn’t seem to have any money worries. He took us all (my daughter included) on an expensive holiday and used the rest as a deposit for a car and to pay off some credit cards.
I knew he’d used the money to do this but didn’t know that was all of his divorce money. I’m sensible with money and would’ve said absolutely not to the holiday and car.
I know he’s always planned on buying and I guess he thought that he didn’t need to save his money as if we bought together there was a good deposit available in mine.

I’ve read and taken on board all of the good advice here. There would never be another house jointly bought without proper legal support to ensure that my deposit was safeguarded as mine.

in terms of the garage conversion, I’m going to make it clear today that the garage door stays in and anything else that is done is completed by a proper company with correct building regs. I suspect at this point he will say he doesn’t want to do it…..and then the next decision is up to him.

As people have rightly pointed out, it may be beneficial for him to live separately until he has some savings. I’d comfortably pay my own bills and receive CM from him and he’d have to look after our baby when he wanted to see him.
I’d even have a nice peaceful life with half of the laundry, cooking etc to do 😀 That being said, I really would like to keep the family together and I’d really like him to go and save some money up to help us buy a new house.
It’s also been pointed out that any stamp duty, legal fees etc would have to come from the equity in my house

@Moorside111 - you've missed one very crucial point, or allowed yourself to be blinkered here.

Please do not allow him to invest any money in renovating YOUR property or contribute in any way personally towards DIY, contributing towards mortgage costs etc as he will inevitably end up having a claim on your daughters inheritance!

Open. Your. Eyes.

Bottom line here = he's got a hella of a lot to gain here whilst you stand to lose so so much.

Moorside111 · 29/06/2025 11:05

4forksache · 29/06/2025 10:32

I think this is far more nuanced than people are making out. There seems to be a lack of communication and not being on the same page.

. Financially, their contribution is about the same if you take maintenance and rental income into account so I think the op focusing on he earns more is a bit of a red herring.
. She works a lot less hours so naturally she’ll end up doing more - although at weekends it should be equal.
. she won’t compromise on her dd and her comfort and admits she’s selfish in that respect, so why is it so awful that he is trying to do the same?

The main issue as I see it, is that they aren’t on the same page. They need to find their end goal and they both need to figure out how to work towards it together in a fair way. The OP should protect her asset and should be wary of how he burned through his money from his house. As an op said, was it on essentials and housing his son before they met or was it on frivolous unnecessary stuff? Either way they need to look at their income and expenditure. Both need to commit to extensive saving and reducing expenditure to work towards that four bed.
Compromises need to be made by both of them. At the moment they are both focusing on their own child and not seeing the bigger picture. Dss can have the small room if he’s only there for 2/3 nights a week, and it’s only temporary until the new house, but OP needs to appreciate that this is a big ask although only temporary and acknowledge that it’s a big deal for him. Communicate and appreciate.
Her frustration will lower if she sees him making an effort to save etc to work towards a common end goal. They need to work together instead of independently within the relationship.

Op if you don’t end up with similar personal spending and similar down time from either chores or working, then please reconsider the relationship. Work as a team. If you can’t do that then end the relationship. There is no team at the moment. You both seem out for all you can get individually.

The thing is I didn’t think his son having the smallest room was a particularly big ask. Yes it’s lovely to have a big room, but children have had the small room in a 3 bed semi for years (myself included) and lived completely happy lives. It’s hardly child abuse- I was happy for him to have it newly decorated to his own taste. And it’s not tiny, it’s a suitable single bedroom- just not what he’s used to- he currently has an en suite and lots of room for his large gaming station.

the bigger bedroom was my daughters in the first place and she’s older by a couple of years- she’s 13 DSS is 11

OP posts:
Notsuchafattynow · 29/06/2025 11:06

Do you have wills?

I hope you have a will that benefits your daughter only.

Do not get mirror wills even if married. Do not sleep walk into losing your daughters inheritance. Do not move this man in until all legal forms are completed, that ensure he has no rights to your home.

GabriellaMontez · 29/06/2025 11:08

As soon as he lives in your property and pays towards mortgage and/or renovation, he potentially has a claim on it. Even though you aren't married.

Be careful.

Moorside111 · 29/06/2025 11:10

ByMerryTiger · 29/06/2025 10:32

She doesn’t seem to care!

I do 😊 I’m going to do as advised and ask him to get somewhere with his son whilst he sorts his finances. Or he can pay for the garage (without removing the door) to be done professionally- I don’t think he will do this.

my OP was to ask AIBU to say no to the garage being converted, knowing it then gives no room for his son.
I had an idea but I just wanted other opinions because on the surface the idea seems very wicked step mum and unfair. I care for his son and my instinct is to make his stays with us as nice as possible

OP posts:
mcmooberry · 29/06/2025 11:10

I wouldn't advise converting your garage regardless, lots of people won't buy a house without one, you don't want to limit your market.

ChristmasFluff · 29/06/2025 11:16

If he pays towards any renovations on the garage, I believe he will then have a financial claim on the house if you split.

GabriellaMontez · 29/06/2025 11:18

It would be worth google ing 'beneficial interest ' to get an idea of how he could acquire rights on your property.

tara66 · 29/06/2025 11:19

Other factor to consider is - if DP pays to convert garage - be sure to get copy of all receipts as he may claim he has invested in your property and should you part he can claim share of what you sell it for even if not married, if he has lived there.

ZoggyStirdust · 29/06/2025 11:22

4forksache · 29/06/2025 10:32

I think this is far more nuanced than people are making out. There seems to be a lack of communication and not being on the same page.

. Financially, their contribution is about the same if you take maintenance and rental income into account so I think the op focusing on he earns more is a bit of a red herring.
. She works a lot less hours so naturally she’ll end up doing more - although at weekends it should be equal.
. she won’t compromise on her dd and her comfort and admits she’s selfish in that respect, so why is it so awful that he is trying to do the same?

The main issue as I see it, is that they aren’t on the same page. They need to find their end goal and they both need to figure out how to work towards it together in a fair way. The OP should protect her asset and should be wary of how he burned through his money from his house. As an op said, was it on essentials and housing his son before they met or was it on frivolous unnecessary stuff? Either way they need to look at their income and expenditure. Both need to commit to extensive saving and reducing expenditure to work towards that four bed.
Compromises need to be made by both of them. At the moment they are both focusing on their own child and not seeing the bigger picture. Dss can have the small room if he’s only there for 2/3 nights a week, and it’s only temporary until the new house, but OP needs to appreciate that this is a big ask although only temporary and acknowledge that it’s a big deal for him. Communicate and appreciate.
Her frustration will lower if she sees him making an effort to save etc to work towards a common end goal. They need to work together instead of independently within the relationship.

Op if you don’t end up with similar personal spending and similar down time from either chores or working, then please reconsider the relationship. Work as a team. If you can’t do that then end the relationship. There is no team at the moment. You both seem out for all you can get individually.

It’s disingenuous to say that he earns loads more and “makes her” pay half when she has rental income she’s not taken into account.

yes it should be in proportion, and yes that changes if she doesn’t have the rental income.

HopscotchBanana · 29/06/2025 11:22

GabriellaMontez · 29/06/2025 10:49

Wow.

He has his son 50/50.

Pays his ex CM.

Relies on you to provide housing/deposit.

Relies on you to parent both his sons.

Are you seeing it yet?

She hasn't spotted it yet, and we're 14 pages in. I don't hold out hope.

She's indirectly funding him having a fancy car. Him flashing cash for his kid to his ex (but not to OP for the child he has with her, he pockets most of his salary and pays the minimum to the household) and he's spent his savings on himself.

The stigma of a second child living "without dad" is what's driving this. OP, please, FFS, don't cling to a mistake, because you and your children will lose your house to this parasite.

ZoggyStirdust · 29/06/2025 11:24

Moorside111 · 29/06/2025 11:10

I do 😊 I’m going to do as advised and ask him to get somewhere with his son whilst he sorts his finances. Or he can pay for the garage (without removing the door) to be done professionally- I don’t think he will do this.

my OP was to ask AIBU to say no to the garage being converted, knowing it then gives no room for his son.
I had an idea but I just wanted other opinions because on the surface the idea seems very wicked step mum and unfair. I care for his son and my instinct is to make his stays with us as nice as possible

You’re either a team or not.

If you are he pays his fair share, but you have to treat his son the same way you treat your daughter and you’re not wanting to do that.

SheilaFentiman · 29/06/2025 11:26

DP doesn’t have his son 50/50 at the moment, OP has updated that he has one night a week and at the weekend.

HopscotchBanana · 29/06/2025 11:27

Moorside111 · 29/06/2025 11:10

I do 😊 I’m going to do as advised and ask him to get somewhere with his son whilst he sorts his finances. Or he can pay for the garage (without removing the door) to be done professionally- I don’t think he will do this.

my OP was to ask AIBU to say no to the garage being converted, knowing it then gives no room for his son.
I had an idea but I just wanted other opinions because on the surface the idea seems very wicked step mum and unfair. I care for his son and my instinct is to make his stays with us as nice as possible

Honestly, I despair.

DO NOT LET HIM PAY FOR THE GARAGE.

He will have a beneficial interest in your house and take a share of it.

I know you don't like what you're reading and determined to stay with someone you're funding, but whilst you say you are reading the thread, too clearly aren't taking it in because he CAN NOT spend money on improving the house or legally he'll take part of it when you finally kick him out as an entitlement via beneficial interest.

AmyDudley · 29/06/2025 11:37

Don;t allow him to do anything to your house because in the event of a break up he will claim he has a right to part of the value having invested in it. (Also it sounds as he has no clue and might potentially damage your property).

Make sure that wherever this relationship goes you always have a home for you and your children that no one can take from you.

aCatCalledFawkes · 29/06/2025 11:39

Moorside111 · 29/06/2025 11:10

I do 😊 I’m going to do as advised and ask him to get somewhere with his son whilst he sorts his finances. Or he can pay for the garage (without removing the door) to be done professionally- I don’t think he will do this.

my OP was to ask AIBU to say no to the garage being converted, knowing it then gives no room for his son.
I had an idea but I just wanted other opinions because on the surface the idea seems very wicked step mum and unfair. I care for his son and my instinct is to make his stays with us as nice as possible

You should be paying for it so he doesn't have a stake in your house.
TBH I don't get the house renovations as a big deal as its quite normal for people to extend or convert the garage or loft. It would also be ok to say that you would buy a sofa bed and give all the children they own rooms. Whats the point is selling if you already have a decent finacial asset you can change.
What I do think is more accurate is that you want to move back in to your house like you never left it and squeeze the others in. To me it feels like you partly want some of your old and no doubt quiet life back. This would suggest that something isn't quite right in the relationship and that your house actually means more to you than money.

Also just to add, your taking your daughter back to a house she loves with her bedroom so you can sell it in a year. Do you not think that's a bit unkind? To get something back she loves only for you sell it.

Bollindger · 29/06/2025 11:40

Have you actually sat his son down and explained everything.
You could make the garage into a man cave, for day time use only, the son would sleep for 18 months in the small room.
you could ask your DP to put the money he would have paid for a rental into a joint account, he pays half the bills for the house as he will have half the children there.
remind him he would save child support and loss of family time.
you could also buy a cot you can move in and out of the sons room , so you do get private time.

PsychoHotSauce · 29/06/2025 11:55

ChristmasFluff · 29/06/2025 11:16

If he pays towards any renovations on the garage, I believe he will then have a financial claim on the house if you split.

Yes he will, and a pretty strong case too. A garage conversion would add significant value and indicate a common intention for it to be a joint home (because the conversion only happened to accommodate his son). Even if he only added 10% or 20% in value, he could easily make a decent case for 50/50 if you split - because of this context.

It would be a flat no for this @Moorside111 I know you're trying to do the right thing, but this is so dangerous legally. Ringfencing and getting bits of legal paperwork won't mean much in a case like this. A judge would look at what both parties understood at the time, and it's not a huge leap to believe he expected this house to be a family home and 50/50, and in the throes of love, that was your intention too.

Producing docs where he's signed his agreement to something else could be perceived as manipulative on your part and trying to benefit at his expense (whats yours is mine and whats mine is my own kind of thing) relying on his false assumptions. I can predict this going so badly!

TheMimsy · 29/06/2025 11:55

Long term could the plan be to save and extend the house so the garage has a room above it? Thats what my neighbours have done so they can stay put with a growing family.

Shinyandnew1 · 29/06/2025 11:58

I wouldn't want him making any changes to my house. I really think him renting somewhere is the only way forward here,

SheilaFentiman · 29/06/2025 12:07

A judge would look at what both parties understood at the time, and it's not a huge leap to believe he expected this house to be a family home and 50/50 Producing docs where he's signed his agreement to something else could be perceived as manipulative on your part

Do you have example cases where this happened?

They aren’t getting married and OP owns the bulk of the house outright from long before she met DP. Also, he’s a grown man i a good job and not vulnerable etc I really think the idea that a judge would award the house disproportionately to the facts is scaremongering