Went there last October with a mate who's dead into this stuff, and yeah the cold near that back corridor was something else. Not just "oh it's a draughty old building" cold, proper bone-deep like something was pulling the warmth right out of you. My torch also started flickering which I know sounds cliche but it genuinely hadn't done that anywhere else in the building.
What gets me is that servant quarters in old houses like that are always the spots people ignore on ghost tours. Everyone wants the grand staircase and the master bedroom don't they. But the servants quarters, the kitchens, the back passages - thats where people actually suffered and spent most of their miserable lives. Makes sense to me that if anything's lingering it'd be back there.
Did anyone take any temperature readings? I didn't have a proper thermometer on me which I'm still annoyed about. Would love to compare notes if anyone else visited around the same time.