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Agenda. Know Your History How to Trace a Parcel’s Lineage. The Quest for History Tabular Genealogy Spatial Genealogy Demonstration. Van O’Brien The Sidwell Company October 3, 2008. The Quest for History. Large Demand from Assessors Tracking Sales and Ownership

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Agenda

Know Your History

How to Trace a Parcel’s Lineage

The Quest for History

Tabular Genealogy

Spatial Genealogy

Demonstration

Van O’Brien

The Sidwell Company

October 3, 2008


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The Quest for History

Large Demand from Assessors

Tracking Sales and Ownership

Changes in Sales Ratios

Seeing what the world looked like

GIS gives decision makers more time to make more informed decisions


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Tabular Genealogy

Tracking Lineage Using Parcel Maintenance Database

Captures Parent/Child Relationship, Historical Data

Approach

Spatial Genealogy

Recovery of Historical Parcels in Geodatabase

Captures the Spatial Characterisitics


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Tabular Genealogy

Origins in Parcel Control Books

Monitor Parcel Number Assignments

Champaign County, Illinois

Parcel Builder Administrator

Communicates with CAMA


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Parents

Children

Transactions

Attachments

Split

Genealogy Terms


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SplitOne Parent, Multiple Children

ConsolidationMultiple Parents, One Child

Complex Splits/ConsolidationsTwo Transactions

Transactions

Parents Retired – Children Assigned Next Available #


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Supplemental Digital Files

Plats, Surveys, Deeds, Etc.

Linked to Parcels and/orTransactions

Attachments



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9.3 Versioned Geodatabase

Records Edits to Default

Time Stamped Geometry

Captures Date of Edit

Can Query Data by Date

Use PBA to Locate/Attribute

Spatial Genealogy



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THANK YOU

The Sidwell Company

675 Sidwell Ct.

St. Charles, IL 60174

(630) 549-1000

www.sidwellco.com