How do I bathroom / kitchen / extension? etc.

Exactly what I thought. But maybe there's a second kitchen somewhere for the cook, and this is only used to heat frozen lasagna?

Also that uber minimalist Muller Van Severen chair in the norm house costs 2500€.
Yes, I had want. But there is a limit to what I am ready to pay for a few (badly) welded pieces of steel.

It's an aesthetic choice I guess; makes it less "kitchen-y" as low ovens are visually recessive.

And it's a Bora hob in a Bulthaup kitchen so I reckon it's north of 90k.