1 meter wide stone walls, mortar, no foundations and wooden beams is what my family house in Spain is made of. It has been there for several hundred years with absolutely 0 structural remodeling, some cosmetic work has been done. Seeing the house will be there for few more years, not sure 1000 though.

If I am correct some of the Romanesque constructions don’t need wood and those have been there for 1000 years.

The seismic activity in Spain is almost null, which I guess matters for this structures.