This download has all the material I used in the Photoshop tutorial I made and would be useful for you to design something yourself.
-A image of a grid with tiles the exact same size as aoe tiles
-An image of all the colors used in West-european castle age houses
-4 images of the progress
-An image with a lot of eye candy on it for you to copy paste
-The final result
You're free to use everything as you like except for the house. If you use the house in any way I'd appreciate it if you ask for my permission first.