I am currently interning for a county in the United States. I am working on the data and mapping needed to fulfill the Open Space Activity of CRS. Stacked parcels are causing me a massive headache.
As an example, take a condo community we have here. It is represented by a parcel for the land/condo association itself, and then individual parcels for each unit are stacked on top this. This is causing the acreage for such areas to be doubled, tripled, quadrupled, etc. Any ideas on how to get around this problem?
Hopefully, these pictures provide a bit more clarity of my problem. In the drawn image, the blue numbers would be parcel IDs. And represent yet another issue of smaller stacked parcels within a large parcel representing the manufactured home park or condo community boundaries.
I have also attached an image of a problem area from the actual data set. It is only a sample of a much larger data set.
I know from dissolving the feature without basing on a field (producing a single polygon) that the area should equal 26.3 acres. The stacked parcels cause the area calculation to equal about 210 acres.
FYI, if it helps, for the Open Space CRS credit I need a table with a unique parcel ID, parcel owner, parcel acreage, parcel acreage within the special flood hazard area, and open space acreage of eligible parcel.
Open space credit is determined by dividing the acreage of eligible open space by the acreage of the regulatory floodplain and multiplying by 1450. I hope this all makes sense.