It's worth noting that if you have 'over-zoned' those empty cells/buildings do get filled up slowly as required, but your demand bar won't go up until they are all filled, as there is no demand for you to zone more when there is already some available.
In this instance, it's a waiting game - for them to fill up - and remember, not having demand does not mean you're not doing the right thing, it just means there's no need to zone right now.
In this instance, it's a waiting game - for them to fill up - and remember, not having demand does not mean you're not doing the right thing, it just means there's no need to zone right now.
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