Sidwell Chosen by Hardin County Appraisal District, TX

August 17, 2009 -- St. Charles, IL - The Hardin County Appraisal District (HCAD), located near Beaumont in east-central Texas, encompasses more than 894 square miles and has approximately 33,000 parcels. To support their ongoing drive to improve the accuracy and integrity of their cadastral GIS, HCAD has once again selected The Sidwell Company to provide professional GIS services. The goals of this project are two-fold: first, that all parcels in the GIS are accounted for and carry a unique parcel number, and second, that no parcels in the database overlap or have gaps where they should not exist.

Under this agreement, Sidwell’s team of experts will review HCAD’s data and eliminate all land areas in the geodatabase parcel feature class that do not contain a parcel number, find and rectify all overlaps between parcels that are not properly aligned, and close off all road right-of-ways from parcels. In the final step, topology validation will be performed on all features affected during this review process to ensure that the geodatabase is topologically correct. Improving the accuracy of their parcel inventory as well as the spatial accuracy of their data will provide the County the ability to improve their workflows in the integration between their GIS and CAMA data and administration of the assessment process.

This project continues the successful partnership and working relationship between HCAD and Sidwell. Prior services provided by Sidwell to HCAD include migration of the County’s GIS data from a Microstation-based platform to the ESRI geodatabase and the cadastral tag data model, which will eliminate data corruption problems and streamline the process of parcel maintenance. Sidwell also provided integration of the GIS with HCAD’s CAMA data, and a GIS website which allows the county to query properties to return attribute reports and map displays, and display real property information such as taxable value for each parcel and property history. According to Hardin County Chief Appraiser Amador Reyna, “HCAD chose Sidwell because they were so highly recommended. They have a staff full of experts who are very experienced in every aspect of mapping, and they are great to work with.” Adds Reyna “They are quick to respond to questions and or suggestions and always seem eager to make sure that everything is exactly right. I highly recommend them to everyone!”

About Sidwell
For over 80 years, The Sidwell Company has provided outstanding products and services, evolving and innovating every step of the way. Sidwell is an employee-owned firm providing integrated land records management solutions and GIS mapping and software development to local government and private-sector organizations across the United States. Sidwell’s premier parcel mapping solution, Parcel Builder™, is currently used by over 140 customers nationwide. Sidwell also offers a full range of aerial photography and photogrammetric services, and is the Midwest Distributor for Magellan™ GPS products and solutions. For more information about Sidwell services and products, call 877.SIDWELL (877.743.9355) or visit

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