My uncle's is very similar. Upper deck and all.Used to go to one with a buddy of mine that was owned by a friend of his family up in the panhandle that's since been sold. Totally badass. Huge garage/barn on the back end with roll-up doors on both sides. Interior was like any high-end lodge/cabin with stained concrete floors, granite and custom cabinets in the kitchen, big stone fireplace, large slate walk-in showers and nice fixtures in the baths. It was the first one I'd ever been in and knew then I may build one myself one day for my retirement place if the cost is indeed cheaper than traditional.
I couldn't find any pics of the inside, but here's some of the outside.
60'x100' shed with the first 20'x60' built into a two story living quarters. Full size roll up doors on the other four sections.