Reconcile Parcels
Over time, DCAD will add and modify parcels, creating new PROPIDs in the process. These need to be identified and then updated in the city's parcel layer. This may include Redrawing Parcels, depending on how much time you have and whether DCAD's parcels look acceptably good.
The first step is to identify where DCAD's propid differ's from the city's.
- Use the Data Management Tools > Features > Feature To Point tool in the toolbox to convert the county parcel layer to points.
- Use the Analysis Tools > Overlay > Spatial Join tool to join the new point layer to the city parcels
- From the resulting feature class, select where the propids from the two layers do not match, which will be something like "PROP_ID <> PROP_ID_12" (the second one may have a different name)
- Export the selection to a new layer and then start going through all the records to reconcile the two layers.
Some of the records will be for new propids and some will be for different parcel geometry. In the latter case, you can ignore it, and in either case you can copy DCAD's parcel geometry (if it looks good) or improve the area by redrawing it and sending it to DCAD.
When that is done, flip the process by converting the city parcels to points and spatially joining them to the county parcels. There should be significantly fewer mismatched records in this set.
