When planning works affecting a neighbour's boundary it is important to note that there are certain legal rights and obligations set out in the Party Wall Act 1996.
In appropriate cases the threat of bankruptcy (by serving a statutory demand) can be a swift and forceful method of debt collection. While bankruptcy may have lost much of its historic stigma...
If your neighbour is making a noise which is causing a nuisance, you can report the matter to your local authority. They will investigate and they may serve an Abatement Notice...
The law recently changed following a Supreme Court decision arising out of an £85 parking fine in Chelmsford. Parking notices and commercial contracts often specify a sum that should be paid if the contract is breached.