Lowtech Graph lists low-tech options for every need of a home. Here you can compare them, find tutorials to build them, and link them together into a circular system. Why low-tech?
A building that lasts longer before it needs work: rain kept off the walls, gaps that let damp dry out, rot-resistant wood, sacrificial parts where the wear falls, mesh against rodents. Not quantified: it depends on exposure and upkeep.