I have looked into this possibility (BUT NOTE THIS IS SPECIFIC TO MY SITUATION AND IS NOT ADVICE)...
Background:
- I am a leaseholder, noisy neighbours are tenants of the HA
- There is a term in my lease that I cannot do anything to "annoy, disturb" etc any other people in the vicinity
- The same term is in the tentants' tenancy agreement
- My landlord is required under our lease to take legal action against tenants who are breaching similar terms to those in my lease, provided I provide security for costs and provided it is reasonable
- I have asked the landlord to take action, they have refused
The reason such a term is there is that there is no way for me to directly sue a neighbour for such a breach*. The problem here is that I would need to sue the landlord for breach of my lease for failing to take action against the tenant (or perhaps a common law claim for interference with quiet enjoyment - judges in several cases have suggested this should have been the course where claims in nuisance against the landlord failed). If I win, the court will not likely force the landlord to take action (that is an equitable remedy and it is difficult to obtain a mandatory injunction to force them to do something). Damages are not likely appropriate (difficult to quantify the value of my chances that the landlord would have won against the tenant), so perhaps an injunction granting me subrogation rights (so I can step into the Landlord's shoes and sue the tenants) would be possible.
The landlord is claiming it is not reasonable because no statutory nuisance has yet been proven. However, the standards applying to statutory nuisance are much lower than annoyance - there is a useful LEASE Tribunal case summarising the court case law (which I will post when I find it). On this basis, I think there is a reasonable case against my neighbours so the landlord is in breach.
Anyway, I am planning this action against my landlord, as well as a defamation action and a harassment action against my neighbour. But before all this kicks off, I need to get my sound-proofing sorted!
*I need privity of contract. You can't sue someone unless you have a contractual relationship with rights against them. This is why standing for legal action against neighbours is usually grounded in statute or tort law.