It's a cupboard built over the stairs. A bulk head of sorts i suppose but it isnt full height of the room and I suppose rather than "waste" materials taking the ceiling all the way across they just left the gap as considered the top to the cupboard ceiling enough.
However for my purposes its...
Im currently in the process of reinsulating our loft and I've come across this void while tearing out the old insulation. It was completely stuffed with insulation. The loft was boarded over with only 100mm of insulation. So im tearing out the boards and the old insulation and plan to replace...
