Are different heights with kitchen cupboards a design no?

[Flump5]

Following my boxed in FF woes( worried about replacing further down the line) I have been wondering about having floor to ceiling cupboards around the boxed in FF .It would be on a different wall with larder cupboards and normal height the other 3 sides

It's fine. Lots of people do it. I have even seen secret pantry door hidden in floor to ceiling unit walls. I think floor to ceiling in a small area looks much better than wall cupboards above worktop so if it means you can avoid that then even better.