Sea Container Cabin
Theres a 2 story house a couple of blocks from me on what was considered an unbuildable lot because it is so narrow and there are prefab trim kits for joining "cans "or cutting in doors and windows , they are built to be stacked like 10 high when full of freight and they are made from a special grade of steel to keep them from rusting at sea making them super durable and pretty cheap as well . I see them up here for about 3-4k for clean used big one and have been thinking of flying a couple into a lot I have that has no road access instead of laying out the cost to put in a 400+ ft driveway through an easement . Google container homes and you will find all kinds of plans and pics from many architects .