I've never run into this problem anywhere else I've worked, but where I work now there seems to be an awful lot of gaps between parcels. These are areas that never got legally described as anyone's property. They technically have no owner and no attribute data. On our zoning map they just end up shown as being zoned whatever the surrounding area is zoned. But now I'm running into a problem. To make a long story short, all the "gaps" in the county ended up being shown as excluded areas on our agricultural preservation plan (a state mandated plan, that awards farmland owners tax credits). But most of them are shown as Exclusive Agriculture on the zoning maps. This inconsistency could screw up the certifiability of the zoning maps, according to the state.
So, my question is... Has anyone ever seen a zoning map that had a seperate designation, such as "undefined" or "none" on a zoning map? I think that would be the only way to fix this problem, but I've never heard of anyone doing that before.