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.
it is the beach
tech
Making new buildings.
I'm not positive but I think it might be called "overtime" or "working overtime" something like that. :)
giaty
the climate
yes
Making new buildings.
They break and you die.
delta
1997.
You are describing evolution.