Click for on overall plan of the halls:
And here are 1:100 scale diagrams of each hall:
For calculating hall capacity during COVID we also have diagrams marked to show capacity with varying amounts of social distancing. See also the FAQ about capacity during COVID.
And here is a 1:100 sheet of ready-to-cut-out tables and chairs allowing you to plan your layout in advance. (Thanks to Upton Village Hall for this)