Name: Property Parcels

Display Field: MAP_PAR_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Is View: true

Is Updatable View: true

Source Schema Changes Allowed: true

Sources

Description: This parcel layer contains discrete, non-overlapping polygons for each property. Adjacent polygons with common ownership and a single tax record have been retained in the "OthLeg" layer that accompanies this TaxPar layer, and dissolved into single parcels in this TaxPar layer. Some non-adjacent parcels may be represented by multi-part polygons where they share common ownership and a single tax record. Public right of ways exist as polygons, not null space. Linework associated with private ROWs are retained in the "OthLeg" layer. Water polygons also representing parcel boundaries have been retained in this TaxPar layer. Additional water features that are not considered parcel boundaries may have been placed in the "Misc" layer that accompanies this TaxPar layer. Easements and other similar non-fee taxable boundaries exist in the 'OthLeg" layer, not the TaxPar layer. The spatial data and CAMA data was updated in 2016 by CMRPC as part of a MassGIS enhancement project. The spatial data and CAMA data is updated on an annual basis by the Central Massachusetts Regional Planning Commission (CMRPC). The data was last updated as of 01/01/2026.

Copyright Text: CMRPC and Town of Mendon. Initial data conversion by James W. Sewall Company

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 192330.682499997
YMin: 868148.094599999
XMax: 200390.2425
YMax: 876914.464600001
Spatial Reference: 26986 (26986)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[231,252,207,0],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[230,0,0,255],"width":0.7}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• MAP_PAR_ID (type: esriFieldTypeString, alias: MAP_PAR_ID, SQL Type: sqlTypeOther, length: 26, nullable: true, editable: true)
• LOC_ID (type: esriFieldTypeString, alias: LOC_ID, SQL Type: sqlTypeOther, length: 18, nullable: true, editable: true)
• POLY_TYPE (type: esriFieldTypeString, alias: POLY_TYPE, SQL Type: sqlTypeOther, length: 15, nullable: true, editable: true, Coded Values: [FEE: FEE], [PRIV_ROW: PRIV_ROW], [TAX: TAX], ... 3 more ...)
• MAP_NO (type: esriFieldTypeString, alias: MAP_NO, SQL Type: sqlTypeOther, length: 4, nullable: true, editable: true)
• SOURCE (type: esriFieldTypeString, alias: SOURCE, SQL Type: sqlTypeOther, length: 15, nullable: false, editable: true, Coded Values: [ASSESS: ASSESS], [SUBDIV: SUBDIV], [OTHER: OTHER], ... 2 more ...)
• PLAN_ID (type: esriFieldTypeString, alias: PLAN_ID, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
• LAST_EDIT (type: esriFieldTypeInteger, alias: LAST_EDIT, SQL Type: sqlTypeOther, nullable: true, editable: true)
• BND_CHK (type: esriFieldTypeString, alias: BND_CHK, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true, Coded Values: [CC: CC], [NR: NR], [OK: OK])
• NO_MATCH (type: esriFieldTypeString, alias: NO_MATCH, SQL Type: sqlTypeOther, length: 1, nullable: false, editable: true, Coded Values: [Y: Y], [N: N])
• TOWN_ID (type: esriFieldTypeSmallInteger, alias: TOWN_ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LOT_NO (type: esriFieldTypeString, alias: LOT_NO, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• x_coord (type: esriFieldTypeInteger, alias: x_coord, SQL Type: sqlTypeOther, nullable: true, editable: true)
• y_coord (type: esriFieldTypeInteger, alias: y_coord, SQL Type: sqlTypeOther, nullable: true, editable: true)
• cama_link (type: esriFieldTypeString, alias: cama_link, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• editmethod (type: esriFieldTypeString, alias: editmethod, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• gis_ac (type: esriFieldTypeDouble, alias: gis_ac, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Property Parcels
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE: ASSESS
• NO_MATCH: N

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 8/11/2026 6:45:47 PM

Schema Last Edit Date: 8/11/2026 6:45:47 PM

Data Last Edit Date: 8/11/2026 6:45:47 PM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat