These buildings are modeled after some real old town buildings from the USA.
The brick texture was created by taking a photo of some bricks on the front of my house. I used the lens distortion filter in gimp to remove lens distortion. I then used blender's stencil with wrap enabled to make it tileable. I then used a paint brush with .001 strength on white with lighten mode to remove any objectionable tile shading.
These are assets for my film and I thought I'd give a few to the blender community. If you see anything on my site you really want I'll try and post them up to blendswap, but I can't make any promises since it takes a while to get them packaged up for blend swap properly.
Here's the link to my films blog if you are interested: