Obviously, the history here is much shorter than in Europe -- but my house is 105 years old, and has some quirks of being an old house, but isn't anywhere close to obsolescense. Actually, my house is one of the newest on my street, although we are among the earliest settled (by Europeans, at any rate) cities in CT (1646).
It is different there, though. My wife's aunt and uncle run a sheep farm in Cumbria, UK, and their house is an old monastery/mining office/who knows what else that is at least 500 years old, and probably closer to 600 years. They have beautiful flag stone floors, and a gorgeous flag stone hearth that have remained prominently in the great room.