Taking up counter space
Raised DWs take up as much counter space as a raised oven, per se.
And depending on what you have on your counter, it doesn't even matter anyway.
I'll share pictures later this week when all is said and done, but over here, bean-to-cup coffee makes have become a staple. So are toasters, kettles, etc.
So you have stuff that is on the counter 24/7 anyway.
My mum wanted a different kitchen layout compared to my grandma in the same room, so she had to give up a lot of counter space anyway, yet decided to go with both a wall oven design and a raised DW.
The slightly raised DW top (40cm, 16" thereabouts) has 2 outlets for her coffee maker and toaster/kettle.
In return, she added a kind of built in bench where she will add a table.
That leaves her with 1 "working space" plus the table.
Have to admit she isn't much of a cook/baker anyway, so peoples need definitely matter in that regard.
Have seen side by side raised DW and oven, or a compact oven above DW.
Lot of planing there depends on height of main user of the space.
My mum is 5 3, I am 5 11, so I could comfortably use an oven that would be located way to high for her.
However, Bosch/Siemens had taken the concept of "wall oven" to an entirely new meaning.
https://appliancist.com/cooking/builtin_ovens/siemens-liftmatic-oven.html
Almost fully featured oven with automatic, programmable lift function.
Pyrolytic self cleaning, you could do food right on the glass-ceramic oven floor, the usual industry-standard convection (though definitely not best in class back then).
Only thing missing was a meat thermometer built in.
