We often see wasps building nests around our place. They tried the green house once but I removed that one as I frequent it often (small one in photo). This year they built one up against the house which we decided to leave alone as wasps do have their use and they never bothered us. It was really interesting to see how the wasps build their nest as it was not closed in the back. The European Paper Wasp is the first sighting of this type of Wasp.