I have a spot that I fill hives from each season as the buggers have eluded me each year, I close one spot and they find another way in, so I have come to an acceptance as the owner is Ok with them being there - old pvt school that is abandoned.
In spring I add a frame of eggs and close the hole and take a nuc a week later.
In the wall cavity :
Cone in place
Nuc added
Window closed up from inside
And I just know you want to know why I was working inside the building !!!
Yep 3 stories up
First Nuc pulled off