FY2021 Sub Parcel Lines

GIS File Name



This layer contains lines showing how parcels were historically divided in the Assessor's database, where two or more lots were merged into a single parcel. When the layer was originally created, it was used to illustrate lots that were owned and used in common and were combined to form a "main lot" for valuation purposes. More recently, any parcels that are merged trigger the creation of a sited parcel line to retain a historical record of the original parcel boundaries. Historical parcel IDs can be found in the "Supplemental Data" area in the assessing database.


Created for historical reference for internal use by the Assessing Department.

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Name Type Details Description
SHAPE_LENGTH type: Double
width: 8
precision: 0
Length of feature in internal units.

Coordinate System

NAD 1983 StatePlane Massachusetts Mainland FIPS 2001 Feet