MAPPING AND DATABASE METHODS

Matt BoeckStory County GIS Coordinator

Ray WillisGIS Coordinator, Polk County Assessor’s

Office

Representing Ownership in GIS

GIS Shapes Polygons

Parcel Boundaries Assessment

Neighborhoods Exemptions (Forest

Reserves, etc.) Flood Boundaries Land Use Soils Credits (Homestead,

etc.) TIF Boundaries

Polylines Parcel Boundaries Original Lots Line Adjustments (CSRs)

Points Buildings on Leased Land Spot Adjustments (CSRs) Commercial Inventory Commercial and

Residential Sales Court Cases Residential Inventory –

Points Valuation Appeals – Points

AG Parcel with Spot Adjustments

AG Parcel with Soils and Land Use

Databases Parcel numbering methods

Geo number School district in parcel number Other formats Story County – Map number/parcel number

Database formats DBF Microsoft Access SQL Server

Tie GIS with Real Estate data Table joins SQL spatial views

Pros and Cons

Publication/ Subscription process for Auditor’s Data

Two Key Data Sets used by Assessor’s Office

Parcel_Point and Parcel_Poly

West Grand Towers Condo

West Grand Towers Condo

Condominiums in Story County

Wesley Grand Co-op

Wesley Grand Co-op

Georgetown Townhomes Plat 4

Georgetown Townhomes Plat 4

Quality Control and Assurance Resolve slivers, gaps, and overlaps with

GIS topology tools Acreage comparisons between digital

shapes and database Database comparison checks

GIS CAMA Real Estate System

QUESTIONS?

DISCUSSION?