I live in London in a street of terrace houses. Very residential with a mix of older people and families. Houses are pretty small and gardens are tiny too, which means that everyone is literally on top,of each other. There is one house behind me where a group of people (late 20s I would say) have very regular, extremely noisy house parties. Think lots of drunk people shouting, thumping music - all able to be heard by the nearby houses.
Quite a few neighbours have complained but they keep doing it...