Non standard Experimentation
So as you can see, I've just taken the sprites and added them in with simple editing in ways the game currently doesn't allow easily. I've created a little fireplace, a sofa, a counter area with drawers, and drawers set into the walls. Moreover, I've also placed several cabinets in closer proximity than would otherwise be allowed and changed their facing.
Certain problems are presented with sprites showing multiple facings (notice how the cabinets face to the lower right or lower left depending upon what wall they are on). The cabinets in this shot are also not centered in the tile, but are right up against the wall.
Also the non standard sprites such as the sofa and fireplace are not easily represented, though I suppose they could be built as a custom building and perhaps have a sprite linked to that.
The other problem comes from the foreground walls, that is those walls on the bottom sides of a room. This is especially true when things like drawers built into walls are present, because even then, cutting down the walls or making them transparent/translucent wouldn't really do the trick. Though showing the room from at least two opposing angles would. (rotating camera angle 180 degrees and taking a separate shot). Also, the floor tiles right next to the foreground walls are blocked by the walls themselves, though again, that could be solved by cutting down walls or transparency.
Of course, all of this is purely ornamental, but then so is much of the game in many ways.
This is just an idle exercise right now. I could easily see a coffee table in front of that little sofa. Chairs as well, and other equivalents of a living room. Basically you could decorate the place and make each room something cool. Heavy cloth banners on the wall with the fort's insignia or crest, small shelves displaying little trophies, or outright cases for trophies, etc,etc,etc. Beer Kegs, mug storage. Display cases.