Just need to put this somewhere because I don't really have anyone to talk to about it.
I'll try to cut a long story short.
Me, DP and 3 DC moved to a new area a year ago. It's a council house (might be relevant as we can't afford to just move or buy our own house).
Neighbours are all nice, apart from my NDN. She's never acknowledged us. We've tried to say hello when we've seen her out or in the garden etc and she'll ignore us. We do the school run, I've let on once when she was walking with her DSis and she sort of grunted at me then as soon as she passed, made a loud heaving/wretching noise. Since then she won't look at me, but will happily talk other parents.
We bought new fences for the back garden as soon as we moved in as it was overgrown with privets etc, the fence has benefitted us and 3 other neighbours. We got the all clear from housing & neighbours first. (NDN's DP ok'd the fence).
We paid for it, didn't ask any neighbours to contribute. Two sets of neighbours were so appreciative and one even gave some money towards the cost, which was nice.
Horrible neighbour sent one of her DPs friends round less than 24hours into starting the fence to find out when we're doing her side because 'she wants it done now'. 
Anyway the fences got done and she's not once acknowledged or thanked us. Whatever.
Thought that might have broken the ice tbh but obviously not.
Anyway, sorry this is becoming a long story.
They party nearly every weekend, until the early hours. Me & DP were going to bed, window open when we heard NDNs dog barking outside. Then she shouts ......SHUT UP YOU LITTLE BLCK FCKER.
So now it's quite obvious that she's racist.
(Dp is black, my children are mixed race)
We've overheard her say awful things about disabled people, she treats her DD like shit (social are involved) , she'll call her DD a cow, a dick head, bitch etc.
I don't even know what I want from the thread, I just needed to tell someone.
I feel awful, angry and hopeless that, especially my DC and DP have to live next to this vile woman and theres not really anything we can do😞