Buildings change overtime due to many factors. They change due to chemical weathering outside. The weather changes the outside of the building. The owner changes the buildings as well to fit with the modern day looks and attract people.
tech
it is the beach
Making new buildings.
I'm not positive but I think it might be called "overtime" or "working overtime" something like that. :)
the climate
yes
giaty
Making new buildings.
delta
They break and you die.
1997.
You are describing evolution.