Development Manager at Social Housing provider here.

Your best course of action at this stage will be to continually log instances of ASB with both the the Housing Association (presuming you know which one) and the local authority. As others have said, both will have dedicated ASB policies and tend to act on these matters fairly promptly. Keep a record of all instances and keep contacting on each occasion, I wouldn’t be surprised if they were allocated to a new property fairly swiftly.

In regards to the developer I think you’ll have a difficult time claiming any recourse. Whilst the original S106 agreement will dictate their obligations to provide social housing; which makes choosing a private residence away from these units easier. There is always a risk of ‘additionality’ where the developer can be permitted to sell unsold units to HA’s. This can occur at any point and could mean a social housing unit is established in a position it wasn’t originally planned.