The description I heard of the Japanese zoning system seemed pretty good: zones increased in terms of noise and irritants. In, say, zone 1, you could have low rise houses, but no commercial centers. But in the commercial zone, you could have houses.
So the zones set an upper bound but not a lower bound.
So you could start with the commercial zones and simply allow them to become mixed use. And for new developments, you could authorize mixed use cases. In a lot of areas they're currently forbidden, even with no existing residents.
So the zones set an upper bound but not a lower bound.
More info: https://news.ycombinator.com/item?id=12325992
So you could start with the commercial zones and simply allow them to become mixed use. And for new developments, you could authorize mixed use cases. In a lot of areas they're currently forbidden, even with no existing residents.