This is the interior of the stairwell, it is now filled with batt insulation between the rim joist, and the wall studs of both the 1st and 2nd floors
The men on the bottom floor are installing the handrail, they were talking about the wood blocking as I was coming up the stairs (the woodblocking between the studs is how the handrail is attatched to the wall.
Closer up we can see the balusters and posts supporting the handrail
This is the view of the interior hallways, the walls are fully insulated and soon the gypsum wallboard will be installed.