I have one long hearth hall with a high ceiling, where two rows of labeled storage chests line one wall. One corner holds a raised platform with a bed and decorations for comfort (and now some gratuitous Yule stuff), another corner a set of frequently re-dialed portals. Over time I've expanded though, adding a fancy stone side room that became the Mistlands-tier crafting area with checkerboard black-marble floor and tar-shingle roof. Lately I've been turning a simple back yard into a black-marble workshop for smelting and baking. Have another room with no real purpose yet other than working on wall-to-wall wolfskin carpet. So, mostly a functional box, but throwing in some decorations here and there.