I’ve created a low level wall texture. Using the grid of 4x4 units, needed to scale (proportion) the wall stones.
But as you can see, there’s a huge difference, between the bit mapped wall, and the fine details in the door-, windows frames.
My three windows aren’t 4x4 but 2x4, because they are small. Managing the UV map, I re-used the tiled texture. This part was a big success, because textures, fits nicely when mesh object are aligned.
For example the two window at the right, and the one window will part of a basic wall. The all share the same bitmap, but a half, or even in one window its mirrored.
NOTE. I put a lot of effort in detailing the door- window frames, but you don’t see it. Maybe I downgrade, less faces to render.