No Stupid Questions

Ok the only people that can help you are the council, noise complaints are the responsibility your local council unfortunately, given the cuts that have happened over the years this means that they are underfunded. What you need to do is get the local noise complaints number and call it every single time it happens. This is what is called a statutory noise complaint. Just Google it. At the same time you need to start a noise complaint diary,

the columns are date, start time, end time, severity*, weather, and details.

Severity is on a scale of 0 to 4, with 0 been nothing and 4 been OMFG argh. Details need to include what type of noise it is and most importantly how it affects you. Headache? Lack of sleep, emotional distress? Got to town however remember that this is going to be a legal document that could get used in court eventually. Also important is to do it daily even if there is no noise. Include if you are away on holiday etc if it regularly happens on a weekend etc. The council should send you this info after the first couple of incidents

Now for the nighttime banging on the walls and screaming, if it just randomly starts in the middle of the night that sounds to me like someone is or could be having domestic abuse. I apologise in advance if this upsets people. You should contact the police and let the know that.

If any of your neighbours are affected try to get the in on it as well, it's much more effective with multiple people.

Eventually you will be asked to place a "noise recording device" in the room that is most affected, at this point you know something is finally going to be done about, eventually...

If you have any remote possibility of moving house in the next year or so don't go down this route as i believe that you have to declare it to the next house buyer

The problem we have in the UK is that most of the laws, procedures and police are built around people not wanting to be complete knobheads. Unfortunately the people have realised this and also realised there are no consequences for their actions

I've had success imagining the reaction a bully is looking for, or expecting; Then giving them a reaction that confounds whatever they had in mind. Don't play their game. Make a new game for you to play. One they won't understand.

My first thought in this case, is to stop by and give him a list of requests you'd like him to play the next morning. If he immediately refuses, just ignore what he says and thank him, because his sound system is way better than yours. That interaction will confuse the hell out of him. He might just stop. If he does or not, go back the next day and ask why he didn't play your request list. If he did play your list, go back and thank him. Then give him another list of music from someone else in your family.

That's just off the top of my head, maybe you can come up with something better. Just remember to make it your game, not his.

Keep calling the police. If they don't want to do anything I've found that telling them if they don't help you that saying something like "okay well me and my mates will 'sort him Jim out' ourselves" kicks them in to action.

I did something similar 2 years ago when I found the address of a guy who stole my bag. They didn't want to help until I implied I might confront him myself, possibly with a weapon.

I'm an American so I don't understand why you haven't just put a couple 30 round mags through the wall with your AR-15?

Somehow I read it as your brother having schizophrenia and got really confused.

Continue to involve authorities, but u fortunately mental health funding keeps getting slashed. There may be a social worker centre you could reach out to for more information.

Disconnect his apartment from electricity. Maybe his breakers are outside. His main water valve is definitely outside, close it frequently. While he showers. Make him tired, fond out when he sleeps then ring his doorbell, call his phone, knock the door, etc…

A friend of mine had a similar issue. Also UK, West London a guy was blasting his car stereo every night in front of his garage, often till 8-9 pm, in some cases during the night while having some weird people over. It was very loud, walls vibrating, etc

Various neighbours called the police on him at least 5 times but nothing happened, he turned off the music for a while, ignored the cops and turned it back on after they left.

They told them they need hard proof to do anything, this would involve getting a regular recording of the music and they should measure the decibels and vibrations to prove how disturbing it is to start anything. It was just the most bizarre way of telling people the local council and police will do nothing. Who the fuck has this kind of equipment and knowledge to do this?

Needless to say nothing happened. My friend moved to another place because of work within 6 months.

I do hope in your case the local law enforcement will be more competent, I wish I could give you an actual advice instead of a story :(

In all seriousness, have you considered physical violence? Avoid being on camera, don't kill the guy, but... make it clear his actions have consequences. He's frail. It doesn't take much, to threaten his ability to safely live alone. Or to push past him and break every electronic gizmo that's splitting your ears at two in the god damn morning. If he's old and crazy and the police won't do anything then rely on them not doing anything.

Kick his ass

You need to get a wolf statue to put in his garden so that can become the locus of his night terrors, be sure to put a speaker in the wolf statue so you can make it talk to him, then claim that you (as the wolf, naturally) are God, and you have granted him the power to walk through walls

Dudes probably got dementia or something

Get like eight to ten shitty things delivered to his house every day. Either something he’ll have to pay for like a pizza, or something just completely useless, like a cheap spare part for something he doesn’t have.

Obviously, use his name and don’t use your real phone number. He'll have to deal with all the trash constantly.

Won’t really solve your issue, but it’s good revenge for him being an asshole.

Oh and sign him up for all the flyers and coupon books you can. Just like a torrent of junk every single day, never ending.