I've been back and forth on prefab over the years as to whether or not I think it's a good deal. Most can't come close to the cost of a custom built structure in Utah making them only practical for difficult to access sites, or if you live in an area like California where custom prices are outrageous. What I have been excited about lately is all the small prefab options that have popped up lately. Sett Studio has a few sub 200 square foot options that price out between $150 - $200 a square foot. That price includes some nice features too, like super efficient SIP construction and a (sort of) Shou Sugi Ban siding.
More photos after the jump.