The schematic is single quarter, which you can place in a corner against a hillside, or paste additional quarters against each other to make a half-house or full house.

The schematic is single sided, but you can also paste a rotated copy onto the back to make it double-sided. The zip file contains a Paint.dot.net image file (.pdn) showing how each layer is made so you can easily craft a different back with a similar design without having fountains on both sides.

The file also comes with an optional Tower, seen below placed at each end of a wall section.

A corner tower unit. The floors are stackable to make it as large as you like, and the roof is a separate option. I have provided a small platform around the inside as a walkway but there are no stairs provided. I find it looks best if you put a spiral staircase around the stone slabs, with an oak floor in the middle, or a spiral staircase in the middle with a surrounding walkway on each storey.

This unit is part of a planned set. The idea is to have four of these around a central castle. Two of the windows will convert into doorways with a wall between them, extended across as the external wall of the main fortress. Hopefully I'll get a bigger example available soon.