An overview of the known use-cases for the V1 Wisconsin Parcel Layer

2. • Statewide parcel collection became statutory
requirement resulting from of Act 20
• Wisc. s. 59.72(2)(a) - directed DOA to collect
parcels and select tax roll attributes
• Called for data on Oct. 23rd 2014 and data
streamed in steadily over next 4 months.
• Processing of “V1” statewide layer was
complete June 31st 2015.

3. • Wisconsin Version 1 “V1”
Statewide Parcel
Application and GDB
download released July
31st 2015.
– 3.43 Million polygon
dataset.
– Application allows users to
interactively search and
explore the parcel data.
– GDB download allows
users to fully analyze all
attributes through GIS or
deploy their own map
service.

4. What’s in a parcel layer?
•Wisconsin use cases of the “V1” layer
•Theoretical Usages
•Other States’ Layers

13. What have other states done?

14. • One of the most established statewide layers with
completeness dating back to 2003.
• Only 56 counties, but 4th largest state by area.
• 49 counties maintained by Montana DOR.
• 7 counties maintained by county themselves.
• ~ 900,000 polygons statewide
• Monthly updates, lead by Montana State Library
who aggregates geometries and joins CAMA (tax)
data.

15. • 5 years (‘98-‘03) to digitize 900,000 parcels.
• With a $3 Million initial investment
• Updates and maintenance funded annually
via a Montana Land Information Act budget
line item.
• Total annual support cost is $802,329 in 2009.

16. • Realized first return on investment(ROI) in
2005 (2.5 years after going live).
• Parcel layer value estimated at $9 Million (as
of 2009) by a Montana DOA study.
– http://giscoordination.mt.gov/cadastral/Cadastral_ROI_Final.doc

18. • Proven Use Cases:
– Agricultural appraisal
– Leasing land for oil and gas operations
– Routing transmission lines (right of way projects)
– Testing sites where lead testing or abatement has
or has not been performed
– Hunting permission on private land