Narrow-Lot House

A very talented friend of mine, who has an architectural background, is looking for property in a peripheral-urban area. I am encouraging him to buy an inexpensive, derelict lot and then design and build his own house out of concrete. I did this concept design in SketchUp over the weekend to get some ideas rolling. Considering that it would be plopped down between buildings, the sides have no windows but that is made up by top-level, floor-to-ceiling/wall-to-wall windows on the front and back (p