GEO LOCATION
The room is referenced multiple times as a location within the house where Scrooge moves and where events occur.
ROOM
He fastened the door, and walked across the hall, and up the stairs: slowly, too: trimming his candle as he went. ... walked through his rooms to see that all was right. ... Upon its coming in, the dying flame leaped up, as though it cried, 'I know him! Marley's Ghost!' and fell again.