[IGCM] Review Parcel Standard and upcoming Parcel Technical Working Group
Idaho Geospatial Council Membership
igcm at admws.idaho.gov
Tue Jun 29 07:55:14 MDT 2021
Good morning,
We want to thank those people that attended the Parcel Technical Working group yesterday and provided valuable feedback to the second version of the parcel data exchange standard. The first version was published in 2010, and we have made a number of changes to the exchange standard as well as to the vision on how we can get closer in Idaho to making access to parcel data easier. You can find a recording of yesterday's parcel TWG here<https://youtu.be/hTSmF0_CPJE> if you would like to hear an overview of the latest version, the changes that were made it, and a discussion surrounding this draft.
Before starting, I do want to emphasize that we are not expecting the counties to format or change their data. The plan is to take the data as is (i.e. the way it comes out the CAMA system) and then standardize the names (i.e. the column headers) and consolidate at the State level.
The biggest changes to the standard (pasted below):
1. The new proposed version of the Parcel Data Exchange Standard<https://gis.idaho.gov/wp-content/uploads/2021/06/S4232_Parcel_Data_Exchange_V2_2021-002-1.docx> (updated to reflect comments from yesterday's TWG) includes 3 datasets:
* A parcel polygon layer with attributes related to the entire parcel (see screen capture of the proposed schema below)
* A parcel point layer displaying parcel centroids (as calculated using GIS tools) with the same attributes as the parcel layer
* A table with improvement information where each row in the table corresponds to one improvement (new in this standard)
2. Discussion point from yesterday's TWG: we will try to provide the consolidated data as individual layers, but also as a service where the improvements are related to the parcel they reside on
3. The attributes in white shown below can only be obtained from the counties, the ones shown in orange can be added during the consolidation process by the State
4. The assessment categories<https://tax.idaho.gov/pubs/EPB00097_10-01-2013.pdf> have been simplified - only one attribute field that includes all assessment categories rather than having those separated into different fields along with the acreage and value of each.
5. Description (e.g. "Tax 1234" or "Cottonwood Subdivision Block 5 Lot 3" or NWSE of Section 3 in T34N R23E") used to have 5 fields (Description 1, 2, 3 ...) has been reduced to just one field called "LGL_DESCR".
6. The Subdivision (people can just look this up in the LGL_DESCR field) and Zoning (that should be a standard and dataset separate from the parcel standard) have been removed.
7. The Updated date (i.e. the most recent date the parcels are current, i.e. when a snapshot of the parcels have been taken) remains. However the Modified date (when each parcel was last edited) is taken out because many counties do not keep track of that and if you really want to know the history of a parcel you should research the legal documents behind it)
8. There are a number of new fields:
* PUBLIC_STD: One field where the names of public agencies are standardized. So for example, "BLM", "DOI BLM", etc. are all translated into "Bureau of Land Management".
* Centroid Coordinates: LAT_DD, LONG_DD, IDTM_N, IDTM_E
* VAL_LAND and VAL_IMPVTS, i.e. the value of land and improvements. We had a discussion about whether those should be gross values, or the values that remain after deducting any exemptions. To support emergency management we landed on the side of gross values.
* HOME_EXMPT: this field contains either True or False depending on whether there is a home exemption on the field or not (again, this will support emergency management)
Other discussion points:
1. Unlike the last time, the State should not be involved in any money transactions. We think this will greatly simplify the process and increase our chance of success. One thought is to have people that want parcel data work directly with the counties to get permission / make a payment if needed / sign forms as counties are currently doing. Then, once granted permission to the data, the county can notify the State to allow access to their parcel data.
2. Last time we had a public standard with a reduced number of attributes (basically just the shape and the PIN number) that is free to the public (note that we are not telling the counties to participate. We would like them to, but off course that is up to the county who is the steward of the data) as well as a comprehensive standard that was free for government agencies, but that may require payment or additional agreements. We need to further determine whether we want to stick with that model, or if there is only 1 data standard and individual counties determine which attributes can be made publicly available, and which ones cannot.
What's next?
* If you are parcel data consumer or producer, please read the latest version of the new parcel standard document and provide comments to Betty Conces and Wilma Roberts<mailto:bconces at kcgov.us;wilma.robertson at its.idaho.gov?subject=Comments%20on%20the%20Parcel%20Standard>on before July 14.
* Attend our next Parcel Technical Working group meeting on Monday July 19 from 2-3 PM<https://gis.idaho.gov/event/parcel-technical-working-group-2> where we will:
* Finalize the parcel standard (depending on the severity of the comments) and hopefully be able to have the IGC-EC approve it during their July 22 IGC-EC meeting<https://gis.idaho.gov/event/idaho-geospatial-council-executive-committee-igc-ec-meeting>.
* Demo a parcel sharing pilot project and discuss how to move forward
* Figure out how we can get buy-in from counties
* Talk about the type of agreements that need to be in place between counties, ITS and parcel data consumers
Attributes for Parcels polygon and Parcel Centroid layers
Attributes in orange can be calculated or added by the State.
Field Name
Alias
Data Type
Length
Description
Examples
PARCEL_ID
Parcel Identification Number
Text
50
The unique identifier for that parcel as used by the source.
R3085100110
STEWARD
Data Steward
Text
20
The source that created the polygon and can answer questions about the history, geometry, and attribution of it.
Canyon County
UPDATED
Data Extract Date
Date
The date the data was shared (i.e., "i.e., data is correct as of ... ")
5/5/2021
WEBSITE
Website
Text
255
The URL for a public internet site for further information, if available.
https://adacounty.id.gov/assessor/
FIPS
FIPS Code
Text
5
The Federal Information Processing Standards (FIPS) code for state and county.
16001
ASR_ACRES
Legal Acres
Double
Prec.: 12 Scale: 4
Acreage as determined by deed or another instrument that describes the outside of a parcel
10.5
LAT_DD
Latitude
Double
Prec: 8 Scale: 5
Latitude of the centroid, in WGS84 expressed in decimal degrees
42.15685
LONG_DD
Longitude
Double
Prec: 10 Scale: 6
Longitude of the centroid, in WGS84 expressed in decimal degrees
-116.12545
IDTM_N
Northing
Integer
Y Coordinate of the Centroid. Northing expressed in IDTM 83 (Meters)
1219601
IDTM_E
Easting
Integer
X Coordinate of the Centroid. Easting expressed in IDTM 83 (Meters)
2327704
OWNER1
Owner
Text
100
Owner of Parcel
John Smith,
OWNER2
Owner
Text
100
Owner of Parcel
Mary Smith
PUBLIC_STD
Standardized Public Agency
Text
7
Standardized name of public agency, e.g., BLM becomes Bureau of Land Management
Bureau of Land Management
MAIL_ADD1
Mailing Address 1
Text
100
Mailing address of owner
1234 S Paper Road
MAIL_ADD2
Mailing Address 2
Text
100
Additional mailing address of owner
Apt 5C
MAIL_CITY
Mailing City
Text
100
Mailing city of owner
Anaktuvuk Pass
MAIL_STATE
Mailing State
Text
2
Mailing state of owner
AK
MAIL_ZIP
Mailing Zip
Text
10
Mailing U.S. zip code of owner
99721
MAIL_CNTRY
Mailing County
Text
100
Mailing country of owner
USA
SITE_ADD
Situs Address
Text
100
Site address of property
6789 W Stapler Ave
SITE_CITY
Situs City
Text
100
City of property
Boise
SITE_ZIP
Situs Zip code
Text
10
Zip code of property
83703
ASR_CATS
Assessment Categories
Text
5
Categories of property used for assessment and taxation
12, 18, 34
LGL_DESCR
Legal Land Description
Text
512
Property description
LT 3, BLK 5 COPPER SUB.
VAL_LAND
Value of Land
Long Integer
Gross Land Value of all land inside a parcel (i.e., before the deductions of any exemptions)
100,000
VAL_IMPVTS
Value of all Improvements
Long Integer
Gross Value Combined value of all improvements inside a parcel (i.e., before the deductions of any exemptions)
200,000
VAL_TOTAL
Total Value
Long Integer
Gross Total Value (i.e., before the deduction of any exemptions)
300,000
HOME_EXMPT
Homeowners Exemption
Boolean
Is there a homeowners exemption on this property?
True
GIS_ACRES
Computed Acres
Double
Prec.: 12 Scale: 2
Acreage as calculated by a GIS using the parcel boundary polygon
11
Attributes for improvement information table
Field Name
Alias
Data Type
Length
Description
Examples
PARCEL_ID
Parcel Identification Number
Text
50
The unique identifier for that parcel as used by the source
RP3085100110
STEWARD
Data Steward
Text
20
The source that created the polygon and can answer questions about the history, geometry, and attribution of it.
Canyon County
UPDATED
Data Extract Date
Date
The date the data was shared ("i.e., data is correct as of ... ")
5/5/2021
WEBSITE
Website
Text
255
The URL for a public internet site for further information, if available.
https://adacounty.id.gov/assessor/
YEAR_BLD
Year built
Integer
Year built
1952
IMP_TYPE
Improvement Type
Text
2
Improvement Type (i.e., LR, MH, RP, etc.)
RP
IMP_DESCR
Improvement Description
Text
100
Improvement Description (i.e., Dwelling, Mobile Home, Pavement, etc.)
Mobile Home
EFF_YR_BLD
Effective year built
Integer
Effective year built
1955
TOT_SQFT
Total Square Feet
Integer
Total Square Feet
2,100
EST_VAL
Estimated Value
Integer
Estimated Value
125,000
NUM_STORY
Number of Stories
Double
Number of Stories
2
NUM_BATH
Number of Bathrooms
Double
Number of Bathrooms
2.5
NUM_BED
Number of Bedrooms
Double
Number of Bedrooms
3
GARAGE_Y_N
Presence of a garage
Text
1
Presence of a garage
Y
SQFT_FLR_1
Square Feet first floor
Integer
Square Feet first floor
1500
SQFT_FLR_2
Square feet second floor
Integer
Square feet second floor
600
SQFT_BSMNT
Square feet basement
Integer
Square feet basement
1100
HEAT_TYPE
Type of heating
Text
50
Type of heating
Central Gas
NUM_FIREPL
Number of Fireplaces
Integer
Number of Fireplaces
2
Thank you,
Betty Conces and Wilma Robertson
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