Thanks for the response. I am not finding much on this issue, so am trying to devise my own methodologies.
Businesses that do both manufacturing and some retail business at the same site can be a sticky one. I'm not dealing with that on this project, but zoning should take that into account, or it is likely to crop up as a problem at some point down the line when you have an industrial business that has transitioned to retail over time and becomes non-conforming.
Not getting many responses here unfortunately. Seems to be a forum mostly to argue over the suburbs and sprawl