system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Hotwarts was built about thousand years ago when gothic style didn't exist yet. Was it rebuilt larer in a new architecture?
gpt
The castle is incredibly magical, capable of not only reparing damage, but changing it's structure, room layouts, number of rooms etc.

It's very possible that the castle changes shape over time to accommodate what it's professors think it should look like.