It's The Little Black Box on Chandos Road, Redland, Bristol.
I've not been there yet but this may be my first trip, I'll upload the posters later.
It looks like a cool place as it used to be a shop so the box office is tiny, you can see it from street and then there is a curtain and so the stage is just metres from the road.
http://thelittleblackbox.net/


