Quiet neighbours now making noise.

You're complaining you hear their music for 2 hours a day...
But that's what you've reduced your sons basketball playing to

You're just like a vile ex-neighbour of mine who agreed that his son would cut down from two hours of random drum practice a day (sometimes from 7am, sometimes in the evenings, sometimes in the afternoons after school) to 'just' an hour a day and a couple of hours a day each day at the weekend. When I put the house up for sale years later (when the son had gone off to university) the neighbour stuck his head over the garden wall and said very aggressively that I'd better not sell to a large noisy family because he and his wife liked the peace.

If your son was playing basketball for two hours a day and ruining my peaceful enjoyment of my garden all summer, I'd be playing music loudly all day and doing a lot of noisy DIY. Teach your son to be a good neighbour by limiting him to an hour at time that works for your neighbours, a couple of times a week. The worst thing about random noise is that you're waiting for it to start and then when it does start you don't know when or if it will stop. The rest of the time he goes to the nearest park and shoots hoops there.

Isn't there a park nearby? The ball bouncing and slamming for 30 minutes four times a day would kill me. A radio isn't comparable.

It probably is directed at you.
They were being considerate neighbours but you weren't repaying that favour, so they've decided to no longer be considerate.
Don't blame them.

At 13 your son should be out roaming and doing his basketball in the local park /court.

No reason for him to be doing at home.

THUD THUD THUDTHUD….THUD..THUD THUD …….THUD THUD THUD THUDTHUD …..THUD THUD THUD THUD….THUDTHUDTHUD…

That’s about five seconds worth and I bet it was annoying to read.

It obviously didn’t work for them before….it worked for you. But they’ve just thought stuff it, we are going to enjoy our space as we like too

Send your kid to the park where he can play as much basketball as he likes.

It's not directed at you, they've just realised they were going to too much effort to stop you hearing them, when clearly noise isn't a problem for you and they have changed their habits and enjoying their home more freely.

Its not clear why can't your 13 year old go to a park?

Even if the park is driving distance it cant be more than 10-15 mins... you could drop him before work and you could make his own way back or you could collect him at lunch.

He clearly LOVES basketball so presumably can fill 3 hours of time?

You are lucky that you can ignore intermittent unpredictable bouncing ball noise. For most people that element of Chinese torture is way way worse than music or a continuous noise at a slightly higher volume.

Pretty much everyone is telling you the same thing, the answer isn't less basketball it's further away basketball

So would that be 3-4 times a day at half an hour each? So 2hrs a day? You’re not the sharpest tool in the shed OP, they should be cranking their music up every time he’s out there.

So half an hour, 4 times a day. Is two hours.

Why you complaining that they are playing music for two hours.

I agree. Your neighbours are not the unreasonable ones here.

Get off your arse and take him to the fcking park. Good grief, the entitlement is astounding.

We've got our son down to no more than three or four times a day now, so it's not excessive.

🤣🤣🤣

I'm starting to think this isn't real.

You're being very entitled, OP.

As a basketball mum I get both sides, the noise is loud and annoying but you also want your son to train. That said I can’t see why he needs to be playing so many times a day, it does seem excessive when he’s presumably just shooting/dribbling alone, are there any camps you can send him on during holidays? My son normally does a fair few full day camps most holidays so he is then more worn out for a couple of days.

Also maybe get him to focus more on strength and conditioning or fitness etc by going to the gym or running.

I’ve also looked at rubber matting for under our hoop to reduce the noise…

You said earlier you'd already limited it to 3x/day! They probably need to play the music to cover up the basketball sound.

I'm with your neighbours here I'm afraid. Why on earth should they put themselves out being considerate to you when you don't do the same.

You say you've 'got it down' to a couple of hours a day, which means that it had been more - how long for? You seem fine with your son disturbing the neighbours for a couple of hours every day but then say their music was for two hours

And of course you can put the basketball hoop somewhere less disruptive for them, you've just chosen not to because it would involve work and cost to put a concreted area elsewhere in your garden

Why the hell would asking if he has siblings be relevant?

Yes, to reiterate - I have DSs and no way would I allow them to do basketball next to the neighbour’s house. It’s completely antisocial.

He’s a teenager - if this is his regular hobby you need to find a basketball court and register him to use that.

Trampolining is bad enough - I limited our kids’ use of ours because of the squeaking. And any shouting meant they came in.

A few times a day is a lot .. what was he doing before you cut it down?

they are entitled to listen to music if your family are noisy