I currently have a 1970's rasied ranch in a suburban neighborhood. It is approx. 2000 square feet total (living space, utility space, etc), 3 beds, 2 baths. We were looking to add on and have two options. The first is the addition of another level, in which we would make the house look like a "raised cape cod", with two dormers, three bedrooms, and another bathroom (we would use the first floor bedrooms for living space). Our second option is to add a 14x20 basement and first floor addition to one side of our house. And remember that the basement is above ground, with full sized windows. Both options would require new vinyl siding (on the entire house) and a new heating/cooling system. My question is, which would be the most expensive (with a builder doing all of the work, start to finish)?? Approximate figures would be much appreciated!!