I work in a basement.
My job is in I.T. support, so it is the law that I must be housed in such a place.
It's not great. No natural light or air.
Once or twice a year the pipes from the toilets above us leak.
The odd mouse shows up every now n again to lighten the mood.
Anyway... apparently one of the most popular type of housing extensions (in London at least ) is the basement extension.
One day I wondered why this might be.
Here is a cartoon in the current Private Eye magazine.