Looking on the internet deeply has found these results:

I fell off the building is the most popular phrase on the web.

I fell from the building 19 results on the web	I fell off the building 165 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You said she fell from a building. Charlie fell off the building, Ox just passed out. Although the top 10 floors of the building fell, the building itself did not collapse. The wall of the building fell down. The building fell down on top of us, and there's water pouring in... When the building fell on us, he tried to protect me. I fell from the top of a building. 8 minutes before we arrived someone fell off the building	So what you're saying is because of bad steel that the balcony fell off the building. 8 minutes before we arrived someone fell off the building Charlie fell off the building, Ox just passed out. How can you even ask me that when you just fell off a building and survived? Fukube fell off the building with a man who had a controller. It's like that fella who fell off a ten storey building. At this moment, he looks down and he sees a view similar to the street below when he almost fell off the building, and the police officer lost his life trying to save him.

I fell from the building

19 results on the web

I fell off the building

165 results on the web

More popular!

You said she fell from a building.
Charlie fell off the building, Ox just passed out.
Although the top 10 floors of the building fell, the building itself did not collapse.
The wall of the building fell down.
The building fell down on top of us, and there's water pouring in...
When the building fell on us, he tried to protect me.
I fell from the top of a building.
8 minutes before we arrived someone fell off the building

So what you're saying is because of bad steel that the balcony fell off the building.
8 minutes before we arrived someone fell off the building
Charlie fell off the building, Ox just passed out.
How can you even ask me that when you just fell off a building and survived?
Fukube fell off the building with a man who had a controller.
It's like that fella who fell off a ten
storey building.
At this moment, he looks down and he sees a view similar to the street below when he almost fell off the building, and the police officer lost his life trying to save him.