Delete garbage cans from images, and remove some wall in the top to get stair to floor level of tereasse
Draw a fire escape staircase from terrace down to ground, make a small platform in the top to turn on. (se picture for stair design)
Make it so I can see it from both sides end and side – 3 pictures total with star on.
The width of the staircase is 1000mm.
This does not have to be a beautiful masterpeace but just to show owner of the building what to expect