What price range should I be expecting for a prefab house like the one described below?
My wife and I would like a home somewhat like a tiny house with an open kitchen- living room in the middle and a bedroom, bathroom and loft at each end. A heated floor, solar system, thermo pump and triple glass are essential. The exterior dimensions could be roughly 16 ft x 40 ft with no basement.
There are Prefab homes of all sizes and designs, including tiny house prefab homes that can arrive fully completed on a truck and ready to move in. See here in our directory -
See designs and plans for prefab homes in the Ecohome Professionals Directory
I don't know where you are but if you toggle on your location on the directory it will narrow the search to companies that supply prefabricated houses to your area. Most companies have a few profile pages but presumably they would have more designs to offer, so you can reach out to each manufacturer with the 'get a quote' tool. Reach out to as many different ones as you like and ask if they have either small homes, or customizable homes. You can also see different tiny house models and designs here.