Compartmentalized building. Build out as necessary, just build a plan prior to build out so that additions do not prevent expansion.Joker, have you looked at what a yurt sets you back? I mean I like the plan and all, but if your buying that many of em you might as well just build the house straight away.
http://www.coloradoyurt.com/
http://www.yurts.com/
I still want a cargo container house, but Wifey isn't having it. Somehow, she is open to this idea.
Either way, buying 2-3 acres in a semi-wooded area, building a house like this, with solar built into the property and a full garden would be my dream layout. Possibly on a slight hill to flat.