Parcel Data and Related Studies

These are a summary of some of the parcel data studies and reports the Subcommittee has produced. State level parcel standards can be found at State Standards. State parcel management program report and studies can be found at State National Parcels Workgroup.

An Assessment of Parcel Data in the US - 2003 Survey Results
(2003) - The conversion of parcel databases appeared to be well underway in 2003 with over half of the 140 million parcels converted into a form that can be used in a GIS.

Federal Agency Customers for Cadastral Data
In June of 2008 the Cadastral Subcommittee was asked to determine which federal agencies have a need for cadastral data and what data do they use. This study summarizes the findings of detailed surveys of federal agencies represented on the Cadastral Subcommittee.

An Assessment of Parcel Data in the US - 2009 Survey Results
(2009) - This document is an update to the 2003 Survey.

The Feasibility of Developing a National Parcel Database of County Data Records: Final Project Report
(2010) - In 2010, the U.S. Department of Housing and Urban Development (HUD) charted new territory in an effort to develop a national database of standardized parcel-level (property) data collected directly from the most authoritative sources: local counties. HUD contracted with Abt Associates Inc. and their subcontractors, Fairview Industries and Smart Data Strategies, to embark on an exploratory project for assembling local assessor data, including key attributes such as property address, assessed value, land use, sales price, and sales history, for 127 targeted counties. The primary tasks of the project included identifying the appropriate data sources in each community, assembling the data and metadata, and standardizing the data in a common format to be accessible for HUD research efforts and for possibly aggregating data to higher levels of geography for public dissemination.

Land Records Modernization History
(2013) - This history of parcels, land records, and GIS is a personal reflection from one of the founders of the principles and concepts for automating land records that we still strive for today. Dr. David Moyer is thoughtful and knowledgeable about land titles, the role of landownership to society, and its importance in supporting policy and decision-making. He has quietly taught and influenced many of the leaders in modern GIS principles and programs. He has agreed to put pen to paper for this reflective piece. It is a history through his eyes, derived from his experiences. He has identified some of the critical points in the development of automated, modernized land records, so that those building today’s systems understand the paths that have led here. The references in the footnotes provide a guide to key points in history. The foundational materials he describes contain important information that is carried forward into all of our work on land records today.