Brick Patch Under Window
This brick patch underneath the window will give
you a clue that this was probably a doorway at one time.
Don't assume this was a doorway because it could have been a large window and someone chose to make it a little smaller.
Looking at this from the outside, it seems like it was done right.
Always be aware when running into a situation like this while doing your home inspections.
Something like this could become a problem later on down the road. I have seen sections like this loosen up over time.
This could create a safety problem if the brick patch ever fell out of the wall. It would become a problem, if you ever started to notice cracks between the brick patch and the existing building.