How should I start modleling these buildings from this image?

I have just started a project making an old street scene in Italy and I have occurred a problem because I’m just not sure how to start and how to model and then finish with the texturing. If somebody could give me like a short guideline that would be helpful. What I was trying to do is model these old Italian style buildings from this image. I have made my own street road and now the buildings are left. Here is the image…


Check out these tutorials from blenderguru.com: I think they’re two versions of the same tutorial (one newer than the other). One of them has streets similar to your image.