Firstly, Merry Christmas! I’m really sorry to hear you’re struggling with your neighbours. I’ve had similar experiences which are generally resolved now, and I’m sure I can help you tackle this. It’s always a shame when a few people cause issues in what is generally a lovely estate.
If you haven’t already spoken to your neighbour directly - that’s a good place to start just to let them know how the noise they make is impacting you. If that doesn’t help, you’ll need to speak to Lewisham Homes directly as they are the landlord and have powers to take action. Our housing officer is Fabio and he can be contacted via email at Fabio.Rumney@lewishamhomes.org.uk (copy in ASB@lewishamhomes.org.uk). He is really good and will help you as best as he can. They will provide you with a case reference number and take this forward, although you will periodically need to push them on it.
It’s worth noting that there is currently a court order affecting the entire estate which Lewisham Homes secured after the street parties earlier in the year (Noise from Valentine Court). You may have seen this order plastered on the communal doors - which means the Police also have additional powers to take action until late next year. Lewisham Homes have also implemented an App imaginatively called The Noise App which I recommend you download and start using to record what is happening.
I’d also recommend you join the Valentine Court Residents group on Facebook (https://www.facebook.com/groups/valentinecourt/) if you have it, which I run. It’s a good place to share your concerns with other residents and help us improve the estate, resolve problems, build our community and to foster good relations between residents, Lewisham Homes and the wider community.