Lovely house, so elegant!
I am still pretty much a n00b at this chopped stair business, but I created something similar to this layout on Test a few days ago (and here I thought I was being original with my design.
) but I used sandstone for mine. I will work on trying to reproduce this pic exactly, and making a step by step tutorial, as you really need exact sequence, seeing final sections is no help when you don't know how to do it.
The key to this stuff is that you are often using stair placement in intermediate phases ONLY to be able to erase other stair pieces later, so you kind of have to work backwards, thinking along the lines, what needs to be here first to delete this piece later. If you look at the spiral stair sticky, you will get the gist of what to do from Sarsmi's tutorial, and the examples in there, and be able to apply the concepts of the chopped stairs to anything really. Remember to start 1 tile away from wall, and pick the right kinds of wall tiles that match your stairs to form the finishing pieces of your stair blocks "walls" (some of them don't look so good due to the varied thickness) and you will catch on. I will say right off, expect some frustration, because one mistake means you often have to start over (i.e. you have one stupid chunk of stairs marring your beautiful design at the end, that you realize can only be erased by a section that must be placed close to the start.
).
This kind of thing with the platform is pretty easy as far as the chopped stair design possibilities, so I know I can explain how to do this part. By way of example, this is a portion of a vendor house I made for someone a couple of weeks ago.
-Skylark