Honey bees, both feral (wild) and colonised, are important beneficial insects and are not normally considered as pests.
They live together in the wild in nests, or as colonies in hives kept by beekeepers. In either case they will only sting people if strongly provoked. Local beekeepers are usually willing to assist with the removal of problem swarms.
If you are not sure whether it is a bee nest then have a look at the British Bee Keepers Associations' website on how to identify which insect you have.