Well, I guess I shall post me house design. It isn't big or fancy like an 18x18. (Truth be told, it is a 15x10, but I loved working on it.)
I favor simple, practical house designs, and since I always lived small, I make space saving and area a large priority. (Hence the flat roof.) I also hold to a philosophy that one does not need millions worth of rares to make a good looking house, even if it is small.
Well, here it is, floor by floor:

First Floor

Second Floor

Third Floor

Roof
I am open to suggestions, but I really like what I have so far. I just love the second floor, I nicknamed it the red room (or sometimes the passion room.)