Parcel Fabric Migration and Adjustment
Track: Cadastral and Land Records
Authors: Jeff Morgan, Jonathan DeShazer
Parcel data in Riverside County was originally 15-80ft off their true locations. By performing least squares adjustment on parcels in the eastern county, we are able to improve the spatial accuracy of the parcel data to +/-2ft. Compared to COGO, LSA significantly speeds up the adjustment process as over 160,000 parcels have been spatially adjusted in 6 months. The experience gained by developing the migration and LSA procedures in-house can be beneficial to other assessor’s offices/districts.