What are the things to look out for in an assembly hall? It's a good idea to check the condition of the seating - how sturdy it is and what it might be attached to. You might not be able to change the layout of chairs fixed to the floor, for example. What equipment and services offered by its staff are included in the booking price?
The key to a successful lecture is isolation from outside noise, whether it's from traffic, a construction site, or neighbouring rooms.