1. International Property Tax Institute Institut international de la fiscalité immobilière Technology Advancements in Property Taxation Presented By: Ruel Williamson

2. International Property Tax Institute Institut international de la fiscalité immobilière The Evolution Sale Price $100,000

3. International Property Tax Institute Institut international de la fiscalité immobilière The Evolution

4. International Property Tax Institute Institut international de la fiscalité immobilière What is Happening in the Industry? Technology Advancements in the Property Taxation Industry Key Areas of Interest GIS Imagery Sketching Public Access/Appeals Desktop Review Solutions

5. International Property Tax Institute Institut international de la fiscalité immobilière Geographic Information Systems ESRI Templates Location Analysis Solutions that Complement GIS

6. International Property Tax Institute Institut international de la fiscalité immobilière Geospatial 3D Modeling

7. International Property Tax Institute Institut international de la fiscalité immobilière Sketching Services AvailableServices Available Latest Advances in TechnologyLatest Advances in Technology Sketch to Imagery AnalysisSketch to Imagery Analysis ArcGIS ExtensionArcGIS Extension

8. International Property Tax Institute Institut international de la fiscalité immobilière Building polygons that are drawn over aerial imagery only replicate information that is already visually apparent. Use of CAMA sketch data eliminates drawing building outlines & adds more detail. Also, the building layer can be used for additional CAMA data analysis such as Sketch Verification. The Growing Desire for More Than A Building Outline

9. International Property Tax Institute Institut international de la fiscalité immobilière Sketching to Imagery Analysis

10. International Property Tax Institute Institut international de la fiscalité immobilière APEX ArcGIS Extension: How Does It Work? Leverages the object move and rotation tools in ArcGIS to orient the SHPs over the aerial imagery. The individual SHPs are merged to a single building layer. The plug in can be used to update an existing layer or to create a new building layer from scratch. Sketch SHPs Parcel Layer SHPs are Placed on Parcel Centroid SHPs are Rotated over the Ortho

11. International Property Tax Institute Institut international de la fiscalité immobilière Impact of International Standards on Use of Imagery  IAAO – International Association of Assessing Officers

12. International Property Tax Institute Institut international de la fiscalité immobilière Imagery Options Street View Obliques Orthophotos

13. International Property Tax Institute Institut international de la fiscalité immobilière Imagery – Change Detection Ortho to Ortho Comparison

14. International Property Tax Institute Institut international de la fiscalité immobilière Connect Assessment

15. International Property Tax Institute Institut international de la fiscalité immobilière Public Access / Online Dispute Resolution

16. International Property Tax Institute Institut international de la fiscalité immobilière Public Access / Online Dispute Resolution

17. International Property Tax Institute Institut international de la fiscalité immobilière Public Access / Online Dispute Resolution

18. International Property Tax Institute Institut international de la fiscalité immobilière Desktop Review

19. International Property Tax Institute Institut international de la fiscalité immobilière Desktop Review Example – ESRI Canada Sketch APEX Integrated Streetfront Photography Property Data ArcGIS Platform Obliques Pictometry Analytics Project Tracking Georeferenced Change Detection

20. International Property Tax Institute Institut international de la fiscalité immobilière Maricopa Sample Area Homogeneous area Housing stock is approx 50-60 years old

21. International Property Tax Institute Institut international de la fiscalité immobilière Summary of Net Change Net value change:+ $ 778,152 Mean average change: +$ 9,048 Largest + change:+$ 67,377 Largest – change:-$ 12,797

22. International Property Tax Institute Institut international de la fiscalité immobilière 22 Types of Data Changes – Maricopa County Sample Area Sample Size: 86 properties

23. International Property Tax Institute Institut international de la fiscalité immobilière FUTURE – CONTINUED CONVERGENCE

24. International Property Tax Institute Institut international de la fiscalité immobilière THANK YOU! Using GIS to Support Good Quality Acknowledgements: Thank you to the following individuals/organizations who provided information/data for this presentation: - Alex Hepp, EagleView - Michael Lomax, ESRI Canada - Jay Graber, APEX - Colin Rule, Modria - Brent Jones, ESRI - Susan Marlow, SDS - IAAO