The small guest house is pretty basic, but works. It is a one room cabin with separate bathroom. It has wood heat or propane wall heater if you're feeling lazy. Cabin has an attic space for insulation, plus insulation on all walls.
It has double pane fiberglass windows on all four sides + in the 1/2 bathroom which has a toilet and sink.
Guest house #2 has same factory finished maple hardwood floors as the other buildings.