I had the same problem at my old house in Southern California. We had a hive in the bathroom wall. The steam from the shower would cause the honey to seep through any cracks in the wall. This was especially common during the summer. We would joke about bottling and selling "Old Man Tim's Wall Honey". :)

When I complained to my landlord about the bees, he came by with a shop vac one day while I was at work. He vacuumed up the bees, and put them in my neighbor's trash can with a note on it saying "Danger Bees!" You can imagine how pleased my neighbor was to find their trashcan out on the street with like 5 days to trash day.