One of the major differences with the American system is that the Japanese government only has twelve types of zones that local governments are allowed to use. https://urbankchoze.blogspot.com/2014/04/japanese-zoning.htm...

American zoning codes get really complicated really fast, particularly around what businesses are considered low-nuisance in what neighborhood. Especially the moment people start getting worried about parking. Particularly home businesses, like daycare, hair salons, even the humble lemonade stand can all be zoned down to a single hair.