>> An example of another comment is 一円. Normally this would mean "one yen", but it also means "the area surrounding", and is a note in the CSV that should be removed from neighborhood names, except for exactly one neighborhood in Shiga where that's actually the name (〒522-0317).

Reminds me of the town called Street.

https://www.google.co.uk/maps?q=Street,+Somerset

There's more great examples of Japanese addressing quirks in Falsehoods Programmers Believe About Addresses.

https://www.mjt.me.uk/posts/falsehoods-programmers-believe-a...