Just wondering but is any anime character or anything else related to architecture? It may sound weird but this came to my mind and I cant stop thinking about it.
I don't know of any character who was an architect but I did find this article about real architects whose work have appeared in anime. Neo Tokyo3. Architecture in Manga and Anime. I know that the Fuji TV building which has a very unique look has appeared in a lot of anime. Another is Tokyo Big Sight and obviously Tokyo Tower. I don't think it's too unusual for architectural landmarks to be represented in anime.