I have two data sets. Each data set has a Parcel ID and square footage for building footprints. One was created by a government agency for tax assessment. The other by a small operation that traced the footprints of buildings from aerial imagery. There is no common attribute file between the buildings, only the tax parcels. We processed the footprints to find area (ft^2), but the data set do not match. I would like to join the government tax database to the file of the traced building footprints.
Does anyone know of a way to join the buildings by parcel by relative size?
I am using ArcMAP 10.x Sublime Text 3.0 MS Excel 2016
Windows 7 Pro Intel i7-4930k 3.40GHz 64 GB RAM 64-bit OS Two NVIDIA 1080 GPU