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?
For creative events it's best to choose non-standard venues that fit the character and theme of the occasion. Art studios and lofts may be a good place to start.