ummm... I think you can use all what you want... from asphalt to bricks
So, I'm going to start a human like model to animate on that street scene (with no textures, my pc will hate me!) with a cam going inside that house from an external and higher point of it... this human is sitted down seeing something in the tv.... well, after that a little story begin, but for the moment on that model I've some problems with flexors...I think.... bhà....
hope to see your textures soon