Timber frames can definitely last hundreds of years. I have multiple family members on my wife's side who live in houses with parts dating back 100-200 years. T

Timber frames can definitely last hundreds of years. I have multiple family members on my wife's side who live in houses with parts dating back 100-200 years. They've been kept up and more or less continuously occupied, but it's not as though that meant continuously conditioned as we would think of it until sometime in the 20th century. Hell, you can drive through New England and see barns that are 150 years old that are only starting to fall down after 50 years of deferred maintenance. If you keep wood dry, it'll last a good long while. Whether you consider 100-200 years a long time, will of course depend on perspective: "In Europe, they think 100 miles is a long way. In the US, they think 100 years is a long time." - William the Conqueror