Small pub function room? That should't be too difficult, provided we are allowed to make some noise.
I can think of one in my area, off the top of my head. Only problem, mine is an expensive area of London and having that space for an entire day may not be as cost-effective as hiring a function room in a less upmarket area. On the plus side, I believe some local bands hire - or used to hire - it for rehearsals, which means noise should not be a problem.
The above is just an example, of course.
Hm, should we perhaps start a new thread to discuss the 2014 meetup, and then I can pin that one, as opposed to continuing on this old one?