I didn't think anyone but trade was down stairs. No one I know was allocated a room downstairs, when, like us they requested one, but could be wrong.
I see al has a ground floor room (224), maybe its because we wanted a large room, Gordon is taking his Linkwitz Open Baffles and they need space around them to work their best. 224 was on first floor on my 2016 Plan - They must have renumbered the rooms.