About 2 minutes, if that. I don't really care where they build houses, I can scuff my paths out and build them to fit.
Might be because I'm lazy, but I don't see the obsession over where a villager plants their house.
Now I'm wishing I left his house on the same grid as Rosie's ;A; I want him to be neighbors with Ankha, but he was just one off to being on par with her as well.