The grass runway at Halfpenny Green (EGBO) is unlicensed because they say it is too near the NDB (about a foot too near if I remember correctly)
22 was unlicensed for a while whilst they were waiting for the numbers to be repainted, so it looks as if it is the runways rather than the actual place but I'm sure someone will be able to enlighten both of us.
I think it also has something to do with what Fire cover is available.