Regarding cellar and basement, at the other extreme, so to speak, what about loft and attic? For me, an attic has the feel of somewhere you can hang out in, maybe with a train set, while a loft is for storing stuff amongst lagged pipes, a water tank, and the danger of coming a cropper and putting your foot through the bedroom ceiling, hence, in the UK, ‘loft conversions’ (into attics?).
Are garrets always occupied?
I saw a cartoon of a scowling man with blackened hands descending from his loft. His wife is saying, “I told you there were dirty books in the loft.”