What should renovators bring to a General Meeting?

Hi

Our neighbours upstairs want to renovate.

They have told us they want to lay new floorboards over acoustic underlay on top of the existing floorboards (these aren’t the original floorboards).

They also want to put in a small bathroom.

We have scheduled a General Meeting to discuss the renovations. We are a small self-managed owner’s corporation and would like some guidance on what information should be provided by renovators at our General Meeting.

Thanks