Asymmetrical facades as the preferred choice?

Most of the time it looks artificial and you can see the brick slips from 200m.

Brick slips? - No, even the monolith faction prefers (in this case incomprehensibly to me) the solid facing shell.

A contribution from Yvonne elsewhere

Back then thought by me with the 40cm parapet for possible flower pots (See @In der Ruine),

just brings me to the suggestion to also divide these windows in height in the manner of folding doors.

A post by Yvonne elsewhere

just brings me to the suggestion to also divide these windows in height like stable doors.

But that will be brutally expensive! We also have sash windows but didn’t know how the original sash division looked. After a lot of back and forth, we had a model window (without glass) made because we were unsure about the layout. I was too scared to order 25 wooden windows that I might not like. :) That was the best 250 euros we invested in the construction. And we can install the test window with single glazing in the garden house.

The house is already there. Just simulate the windows including the muntins with tape. That helps.