I would certainly use wood, and then just design it like the Japanese do for their old buildings, which are continuously repaired and after 1000 years you would

I would certainly use wood, and then just design it like the Japanese do for their old buildings, which are continuously repaired and after 1000 years you would still have the same home but it would be a Ship of Theseus type of situation. Wood has been used for building for thousands of years, and I wood imagine that humanity will forever be using wood for building, so there is a small chance you would lose the knowledge of how to build with it.