I learned another thing today; before you start building a house you need to hire a special company. This special company will send over some nice guys with some very special equipment to dig a very expensive hole.They will take a few samples, hang around a bit, have a coffee and send you the results a week later. I also learned that some people call this a soil test.
Next step: decide on the final roof structure of the new kitchen and make plans for the interior design. Keep you posted.