To be annoyed at my neighbour?

[PeachHog]

Moved into a lovely semi detached, private rented, 18 months ago. Have 2 kids 7 and 10, it's fair to say that we've not been the quietest family. Like many we argue most days, kids play loudly, and we probably haven't been as aware of noise as we should have been. There's a single mother next door with a teenage daughter. DH put a dartboard up on adjoing wall a few weeks ago, however he didnt realise it would be heard by next door until we could hear her turn the music up whenever he was throwing darts.

However, this is what annoyed me - instead of coming to talk to us, she's went directly to the landlord to complain about the unreasonable level of noise and the dartboard! Landlord's now annoyed we didn't agree this with him first (we should have) and now im terrified we're at risk of losing our home. Aibu to think that even though we were in the wrong, she should have come to us first instead of going directly to the landlord? I had no idea she even knew him.

No people don’t argue most days, no people don’t have a disregard for their neighbours. Of course a bloody dart board on a shared wall is going to make a noise!!!! You sound like dreadful people to live next door. Surely you can even see why she didn’t want to approach you!!

You put up a DARTBOARD, on a PARTY WALL, in a RENTED property, without PERMISSION???? F me, that's some level of arseyness right there!

OP, I won’t pile on you with the terrible neighbour accusations.
I am guessing that arguing and loud DC is your normal - until now, when your neighbour has picked up on it and before that you thought it was normal but now know it isn’t.
I grew up in a house where not tending the back garden was the norm, so had no realisation that if your neighbours are unable to ignore the overgrown mess that I had left my back garden to become (because I didn’t know how to garden) and find it a real eyesore, then this is the point that you make changes.
Apologise to your neighbour and the Landlord, remove the Dartboard and start working on your family’s neighbourliness skills. That way, they will grow up with these (trying to resolve issues with conversation rather than raised voices, keeping noise levels down and avoiding repetitive percussive activities that will affect their neighbour’s enjoyment of their property) and won’t fall into the same behaviour that you have become used to.
I became a pretty nifty gardener quite quickly as a result of this intervention, and a good friend of my neighbour who brought this up, and have since made sure that the DC, when they came along, were also taught to be mindful of the impact their shrieking/shouting Etc.might have on our neighbours - with the result that we have never fallen out with them or any subsequent neighbours.
Good luck with your efforts😁

Who doesn't realise that darts make a noise. Anyone who remotely gave a toss would have placed it on an opposite wall, if at all? You do sound like nightmares neighbours tbf.