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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to be upset by my neighbours' huge extension?

181 replies

ElfinsMum · 17/03/2026 03:17

We (family of 5) live in a 30 year old property built on a small site that was originally our neighbour's garden. We bought several years ago from them. At that time, they were doing a renovation on the old cottage as the grandmother had died so that the early 20s DGD and her partner could move in. At the time i was a bit 🤔about it if i'm honest just because my (wealthy as it happens) parents have never and would never give me a house, let alone spend weeks personally slaving over a full blown renovation for me. Since then we have lived perfectly peacefully next door to them.

Now they are doing a large extension. They have bulldozed their whole back garden and the final house will now stretch all the way along our boundary front to back, as well as adding an extra storey to overlook our whole bungalow. The builders literally have to work on our land all day to build it. They have even had to remove a small section of our drive to lay foundations. They have moved out for the duration, i assume back with mum and dad for free. We are stuck here.

I know i am not being unreasonable to worry that their huge new extension will be ugly, dominate our space, reduce our privacy and probably damage the value of our house.

BUT we love living here, love the area, school, public transport, other neighbours etc. Our house is worn and lived in as everyone's is that is 15 years into this parenting caper.

I am aware, as you will now be, that I am being bitter and twisted on the subject. How can i continue to like living in our home? How do i avoid turning into one of THOSE people that has a stupid one-sided vendetta with the neighbours? How do i avoid being resentful that they will have a massive, polished home for the two of them, while we slum it over here with 5 of us in a cottage with one bathroom and a kitchen made of MDF? How do i forgive them for choosing to use every centimetre of their land when they must know it is at our expense?

P.S. The development meets local planning regs to the milimetre so don't bother with planning arguments.

OP posts:
ElfinsMum · 17/03/2026 09:38

Btw there is no mention of party walls in the local planning regs that I could see. There was a section on rules when building on the boundary but it also stated that these are relaxed when an original block has been subdivided as ours has been. I also would say that over development of small sites is quite normal here and what they are doing is pretty common. There are several examples along our street and many more if you head into the neighbouring, more expensive area.

OP posts:
Bulbsbulbsbulbs · 17/03/2026 09:38

OhDear111 · 17/03/2026 09:21

@Bulbsbulbsbulbs In the uk you get a solicitors letter to say no access to your land. We stopped DMs neighbour doing this. They don’t have any right to access your land without an agreement, so say you want one. Why roll over?

Because by not accessing the land the wall would have looked absolutely awful. Believe me we tried everything to stop him doing what he did including solicitors letters but eventually it came down to did we want a horrendously ugly unpainted wall or a decent one painted to match the rest of his house.

The scandal is that you cannot force someone to make a party wall agreement.

My year of hell being described as 'rolling over' is rather ironic.

StaringAtTheWater · 17/03/2026 09:36

I'm sorry OP, this sounds like a shit situation but you can only do what's in your power to do. Document and take photos of all the damage to your garden and drive (do you have some "before" pictures you can dig out?) They will need to pay for the damage. I'm not sure whether they'd also be obliged to cover the cost of screens / landscaping solutions to restore your privacy; but you should start investigating the options. Planting some quick growing trees or bamboo might look nicer than just a screen alone?

CarrotVan · 17/03/2026 09:35

ElfinsMum · 17/03/2026 09:26

Ok, it looks like we should write to them and say they should have requested access to our land for the build and that we want them to pay to make good our garden and driveway once they are finished.

Do you think that would cover screening plants/trellising along their side wall?

And you do not consent to their contractors accessing your land until you have an acceptable agreement in writing.

ask for:

  • timeline of works including when they expect to need access to your land
  • remediation works by a contractor of your choice, to the previous standard, for your garden and driveway or a cash amount based on the average of quotes from three contractors chosen by you
  • considerate working hours and no loud music in the area near your house
  • no work in or near your garden at weekends
sesquipedalian · 17/03/2026 09:34

“The builders literally have to work on our land all day to build it”

So why do you let them? You say it’s because you want them to finish quickly; you say you didn’t oppose planning permission because you didn’t want to fall out with the neighbours - but you could have said,”No objection to the plans but they may not come onto our property at all - I don’t want their builders on my land” - and they would have had to modify the plans. Digging up your driveway is outrageous. It seems, though, from reading all your posts, that what you actually mind about is that a young person has been gifted a house and you haven’t. That’s life. Sometimes you’re lucky; sometimes you’re not. Some people get fabulous jobs/legacies/gifted family money; most of us just plod on doing the best we can. You need to get over being so bitter about your NDN - so she’s lucky. Whatever the extended house is like, it doesn’t take away from what you have.

KoiTetra · 17/03/2026 09:32

ElfinsMum · 17/03/2026 06:52

Yep. Part of our front garden was wrecked on day one. The other two thirds is waiting to be wrecked when they replace the rest of the fence with new metal sheet fencing.

Do you think we could ask for a contribution to landscaping? (= screening off as best we can the back of their house now in our faces from 3 of our bedrooms)

As you are outside the UK, no ideal.

In the UK they would be expected to pay to return your property to the way it was before (relay drive, landscape planted areas etc) but as you are not in the UK no one will know unless you tell us where you are and someone knows the law there.

ElfinsMum · 17/03/2026 09:31

HotBaths · 17/03/2026 09:27

But that’s their problem! By not objecting to the planning, not throwing the builders off your land, not telling them they are not allowed to ruin your garden, you are giving the impression you’re fine with all of this, and aren’t someone who needs consulting!

But it's not the builders' fault is it? Why throw a strop at them? The couple are nowhere to be seen since 2 weeks ago.

OP posts:
Bushmillsbabe · 17/03/2026 09:30

Haven't read full thread, but do they have party wall agreement in place with you? They should do if building up to /close to boundary, and various conditions can be added in around hours and manner of work, potential compensation etc.

If they haven't, they have left themselves wide open to claims for any damage from you, and as they have breached guidance by not getting it, you would be likely to win any claims.

However, you probably don't want bad feeling with them, but definitely look into party wall for your own info, and document their works as evidence. If you have any pre work photos that would also help

KoiTetra · 17/03/2026 09:28

CeciliaMars · 17/03/2026 05:06

YANBU to be upset but I suspect the answer is just ‘get over it’. You yourself have benefitted from a plot that used to be someone’s garden. Now they’ve decided to use all their garden space too - nothing you can do as you say, it meets planning regs. If it makes you feel any better, our neighbours were planning building-wise a few years ago that really upset me - I thought it was massively going to infringe on us in terms of noise, light and privacy. I even went to a council meeting and spoke against it. It went ahead anyway and now doesn’t bother me at all.

Ultimately this, perfectly reasonable to be sad and upset that your living arrangements are no longer as perfect as they used to be. Nothing you can do to stop or change that so you have to move on and accept the new situation

HotBaths · 17/03/2026 09:27

ElfinsMum · 17/03/2026 09:17

Didn't know they were going to until they were. Once they were, it seems quicker to let them get on with it. I can't see how they would build the wall all down the boundary without access tbh.

But that’s their problem! By not objecting to the planning, not throwing the builders off your land, not telling them they are not allowed to ruin your garden, you are giving the impression you’re fine with all of this, and aren’t someone who needs consulting!

ElfinsMum · 17/03/2026 09:26

Ok, it looks like we should write to them and say they should have requested access to our land for the build and that we want them to pay to make good our garden and driveway once they are finished.

Do you think that would cover screening plants/trellising along their side wall?

OP posts:
Merseymum1980 · 17/03/2026 09:24

Where are you based please?
Do your office copie entries have any clauses for a right to light and air?

CarrotVan · 17/03/2026 09:24

ElfinsMum · 17/03/2026 09:17

Didn't know they were going to until they were. Once they were, it seems quicker to let them get on with it. I can't see how they would build the wall all down the boundary without access tbh.

That is a ‘them’ problem. They have no right to trespass on your land and destroy your property (plants, fences etc). This is not essential maintenance and even if it was they would still need to make good. You need to either talk to them and get a written agreement about access and remediation or contact a solicitor to do it for you.

in terms of being on bad terms - do you socialise with them, do they take in your parcels or help with your bins, is there any material difference made in your life by them being pissed off with you for asserting your rights politely and firmly?

OhDear111 · 17/03/2026 09:21

@Bulbsbulbsbulbs In the uk you get a solicitors letter to say no access to your land. We stopped DMs neighbour doing this. They don’t have any right to access your land without an agreement, so say you want one. Why roll over?

noodlebugz · 17/03/2026 09:21

I think it’s perfectly reasonable to say - you need to be more considerate when building this, you need to make right the damage to our garden / home (if there is any). You need to look into your legal rights in the country you’re in for this should you need them, which it seems you haven’t done.

But from your responses here something makes me feel that you won’t. Perhaps you should end the thread and continue to seethe?

ElfinsMum · 17/03/2026 09:20

user7538796538 · 17/03/2026 09:15

To me it sounds like your bitter because your wealthy parents didn’t help you, and you’ve now gone on to have a large family yourself that you too won’t be able to help on the housing ladder. It’s horribly bitter and twisted to be sniffy about a generous family helping their youngsters - probably gives the grandparents security too, knowing they have family on hand!

There are two types of people in my experience “I struggled so I will do all in my power to help my kids” and “I struggled so you can too” bad luck that your parents are type two really OP!

My parents have never struggled a day in their lives!! They didn't earn their money. Well, not most of it. They are very snobby about people who made their own money 😂

OP posts:
Bulbsbulbsbulbs · 17/03/2026 09:19

This exact thing happened to me here in the UK. They used their whole back garden and built right up to the boundary. They should have got a party wall agreement but didn't. They ruined our garden and refused to pay. We ended up with a huge looming wall to look at rather than a fence. The planners couldn't have given less of a shit.

Anyway, I moved. They had really ruined my little haven with their attitude ( laughed in my face when I complained about the damage to my garden) and general selfishness.

So I sympathise with you. I think you should definitely ask for your garden to be returned to what it was. Then I'd live with it got 6 months whilst looking at other options. Then decide whether to stay or go

ElfinsMum · 17/03/2026 09:17

Itsabingthin · 17/03/2026 09:14

Why do you agree to them using your garden. Can’t you say no?

Didn't know they were going to until they were. Once they were, it seems quicker to let them get on with it. I can't see how they would build the wall all down the boundary without access tbh.

OP posts:
user7538796538 · 17/03/2026 09:15

To me it sounds like your bitter because your wealthy parents didn’t help you, and you’ve now gone on to have a large family yourself that you too won’t be able to help on the housing ladder. It’s horribly bitter and twisted to be sniffy about a generous family helping their youngsters - probably gives the grandparents security too, knowing they have family on hand!

There are two types of people in my experience “I struggled so I will do all in my power to help my kids” and “I struggled so you can too” bad luck that your parents are type two really OP!

ElfinsMum · 17/03/2026 09:15

An unwinnable fight too

OP posts:
Itsabingthin · 17/03/2026 09:14

Why do you agree to them using your garden. Can’t you say no?

ElfinsMum · 17/03/2026 09:14

HotBaths · 17/03/2026 09:09

Respectfully, given the fact that you seem to think your existence is predicated on not bothering other people, this is ridiculous. You sound as if you were looking for an excuse not to object to planning. You are also not required to allow them access to your land, far less wreck your garden. Find a backbone, OP. Seething about how being given a house is ‘princessy’ is just distracting you from the stuff you can change.

Of course we didn't want to object to planning. Who wants to get into a fight with their neighbours?

OP posts:
OhDear111 · 17/03/2026 09:13

@ElfinsMum
Well, you come across as jealous of the house next door! So if you don’t care, why say about the house at all? Its newness is obviously bugging you.

I do get pleasure from my house. It’s large and lovely. You are at odds with your neighbour so obviously not everyone thinks like you but you don’t want to spend the money. Your choice but I love having a house I’m proud of and it’s got a 15 year old kitchen. It still fills me with joy every morning. You don’t appear to like yours so why not have something better if you can afford it? You prefer to criticise others for what they appreciate. Your neighbours want something better and you resent it.

OneTealTurtle · 17/03/2026 09:12

ElfinsMum · 17/03/2026 07:57

Because it undermines the kid's independence and....dunno what to call it.... ambition? graft?

Isn't there a certain pride that comes from saying "we earned this"?

Christ that makes me sound like Bloody Maggie. Ouch.

Don’t be so silly. If you’ve brought your children up right then no, it doesn’t stop them being independent or having ambition.

It shouldn’t be frowned upon to help your children if you can, because if you can, you should. Nobody should have to struggle just so people like you don’t feel hard done by.

ElfinsMum · 17/03/2026 09:12

tripleginandtonic · 17/03/2026 09:06

They're doing nothing wrong if its within planning regs. You'll only asked yourself miserable hating them, nothing will change. You made the choice to allow Thomson your land for the build, out of interest why did you?

No we didn't. We were never asked. I don't know very much about the planning process in this country so no idea whether that's an error.

But now it's in progress, i want the builders to be able to work as fast as possible.

OP posts:
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