To drop my kids off at partying neighbours at 6am tomorrow

I work in this sector OP and most Unis these days have an 'Off Campus Accommodation Officer'. Can't say for sure about Surrey though. Their job will be to ensure that students have integrated into the community effectively and are living in a respectful manner. If you report the repeated disturbance to them they should be able to send someone out to have a word/call them in to speak to them at Uni.

The other route you could try is the local council. If the property is an HMO (it will be automatically if there are 5 or more tenants and in some LA areas as few as 4) there will be a licensing department who will be responsible for ensuring HMOs are being managed effectively which will include anti-social behaviour management.

Exactly.
It certainly wasn't a one off when my cousin took action.
It had become a regular occurrence in a large house not far from the university, her husband worked there.
So far from a one off.
It had been a family home and when it was inherited by a son living abroad he decided to rent it out to students.

I had a teenage neighbour who did this when his parents went away. I took great delight in playing heavy metal full blast at 9 am whilst he and his mates were sleeping it off.

Do you think that there might be drugs being taken and sold at the parties? Police might find it harder to ignore, particularly if you go over to complain and are offered some.

A more immediate response - and I did this once, in a haze of sleep deprivation, is to go over - the door will be open, and pull the plug on the sound system while shouting at them that next time you're bringing a hammer and you'll smash it to pieces, and that they are selfish bastards. They're not going to call the police.

It wasn't planned when I did this, but was surpisingly effective.

I used to live in a ground floor maisonette with another above. New tenant moved in, youngish, bringing his girlfriend with him. Regularly ridiculously loud music until 3 in the morning, even in the week (they didn't seem to have jobs, God knows how they paid the rent). Often it wouldn't start up until gone midnight, presumably because they'd just got back in. One night I tried to sleep in the car because the music was so loud in my flat but could still here it, so drove car round the block.

I discovered bloke across road knew the landlord so I got his address and phone number. I wrote a letter detailing all the noise and said that next time it happened I would ring said landlord up no matter what the time. Hand delivered it. Sure enough, two days later, music started at 3 am. So I rang landlord and woke him up. And again three days later.

Next day, landlord knocked on my door telling me he was going to evict them. Which he did. Peace was restored and several other neighbours brought me champagne.

Honestly at that age and acting like that the more you retaliate the worse they'll likely be.
I would try appealing to their conscience instead of trying to annoy them.
When DH is back try to muster up some tears and go round saying the DC were crying for hours last night as they were exhausted and you were up with them at 6am and they've spent all day upset and tired. Ask if there's any way they could use a friends house who doesn't have young children next to it instead.

Past experience says police won’t come out for noise but any hint of violence, drugs or criminal damage puts you further up the priority list.

Might be worth contacting the station to see if you’ve got a community support officer, I ended up with the mobile number of ours and she was so helpful.

I’d play coco melon or hey duggee stick song as loud as possible, one song on repeat against the shared wall and then go off and take the kids to the park for a couple of hours as pay back!!

Keep a diary highlighting the hours, outside shouting, outside music etc. Also any rudeness such as their responses like "we are allowed to".

Report them to the university. They have no issue messing with the sleep of all the neighbours and actions have consequences.

Suddenly find Jesus and play hymns super loud with the speakers against the party wall all morning?

When I was in halls, there was a payphone in every flat - with the phone numbers of all the flats on.
so when i had a flat that behaved like this, I called them and told them if they didnt pack it in I’d be calling them every morning for a week at 6.30am.
They carried on. So I followed through with this.
They didnt kniw who or which flat i was calling from.
They got the message.

Id go and wake them up early and if possible park a car near their windows with music blaring

Being noisy back seems to be the only thing in my experience works with noisy neighbours. You need to inconvenience them.

Maybe have an epic party through exam season...

I’m surprised that no other neighbours in the area were up, out and addressing it?

is there a street WhatsApp group or similar op?

Agree with media, and posting it to socials. Your local newspaper will love this.

You can call police and they’ll do a raid if it’s going on past unsociable hours, but if it’s not late then you can’t really. My DCs as students def went to some parties that were shut down!

its v selfish of them - DD lived in a residential area at uni last year (a few student houses but not many) and they were very considerate to the neighbours - and it was actually their attached side who pissed them off with non-reg building work after hours.

Their landlord had words and they apologised. Just to give a perspective that not all students are loud and obnoxious!!

I’d be playing really loud music next to their attached side round about now!!!

I have to ask

you know “lots” of students who have contacts in the world of professional security?

I don't know where you are, but my local Uni has its own security service who will send a van out to a student house and tell them to dial it back. Check if yours does this. We had a student party in the next door house years ago, which was ridiculously loud until about 4 am. At 6 am my husband went and started/ran his very noisy motorcycle outside their house for a good 15 minutes.

Arm the kids with kitchen pots and pans and let them have their own mini "disco" right outside these tossers' door.

Actually lots of kids down here (SE) know people who work in security. Everyone seems to have a built brother or friend now gyms are so popular.
Parties do get out of control as it’s so easy for everyone to tell their mates.