Fritz:
I have been reviewing the zoning ordinance for Fishers Indiana, including the zoning map and the Town of Fishers, Unified Development Ordinance, and I do not see any references to Z1 or Z5. Here is a link to the ordinance, table of contents and maps: http://www.fishers.in.us/egov/docs/1163779146868.htm
I also did a general search for z1 and z5 zoning, as many municipalities (as it appears that Fishers did) adopt unified or model codes for zoning, and I found no reference to this in any of those places either.
If access to the town zoning ordinance material doesn't help, please provide some additional information so that I can search out better the details you are looking for.
Thank you,
Dan
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