The costs are not final yet, but I wanted to share what my beautiful sister so carefully put together. We estimate at this point the tiny house to have cost about 12k so far. There are just a few materials left to purchase. I would say another 2-3k for the walls, insulation, ceiling, final floor covering. Not bad for having the house wrapped, roofed, windows, and all the exterior walls. The house will be ready for winter in just a few more hours of labor. We need to get a shower enclosure asap so we can put the sliding glass door in.